2017_12 ITWILL practice

playGround.py

# -*- coding: utf-8 -*-
"""
Created on Fri Dec  8 14:33:57 2017

@author: Administrator
"""

_myname='samsjang'
my_name='홍길동'
MyName2='Hong gil-dong'
counter = 1
Counter = 2

import keyword
keyword.kwlist

abs(-3)
abs = 1
abs(-3)

print(type(a))

chr = "this is character"
print(type(chr))



	d = [1000,2000,3000,4000]

	print(d)

	print(type(d))
    
## 3
    
for i in d:
    print(i)    
i
    
for x in d:
    print(x)
    
range(100)    

for i in range(100):
	print(i)

import this


a = 3
b = 3
a is b

import sys
sys.getrefcount(3)

c =3
c
del(c)

a = [1,2,3]
b = a
b

a[0]
a[1] = 4
a
b

a = [1,2,3]
b = a[:]
b
a[1] = 10
b

from copy import copy
b = copy(a)
a
b

a[1] = 6
a
b

## deep copy example
## 1. 
a = [1,2,[3,4]]
a
b = a
b
b = copy(a)
b
a[2][0] = 5
a
b

# 2. deep
from copy import copy, deepcopy 
a = [1,2,[3,4]]
a
b = a[:]
b

a is b

b = deepcopy(a)
b
a[2][0] = 5
a
b

## 2.2 deep two
a = [1,2,[3,4,[5,6,7]]]
a
b = a
b
b = deepcopy(a)
b
a[2][2][1] = 10
a
b

a = 123
b = -178
c = 0

a = 1.2
b = -3.45

a = "python"
b = " is fun"
a + b

a * 3

a = [1,3,5,7,9]
a[0]

a[1:4]
a[2:3+1]



a = 10
b = 10

a is b


a = [ ]
a
a = list()






t1 = ()
t2 = (1,2,3)
t2

t1 = (1,2,'a','b')
t1
t1[3]

t1 = (1,2,(3,4))
t1[2][0]

del t1[0]

t1[0] = 3

dic = { }
dic['파이썬'] = 'www.python.org'
dic


dic['애플'] = 'www.apple.com'
dic['마이크로소프트'] = 'www.microsoft.com'
dic

dic.keys()
dic.values()


dic.pop("파이썬")
dic.clear()

dic = {'나는':('I',0), '소년':('boy',2), '이다':('am',1),
       '피자':('pizza',2), '먹는다':('eat',1)} 
dic


result = ''
input_kor = input('번역할 한글을 입력하세요~')
input_list = input_kor.split(' ')
print(input_list)

dic['이다'][0]

for i in range(len(input_list)):  # i : 0,1,2
    for j in input_list :         # j : 나는
        if dic[j][1] == i :
            result = result + dic[j][0] + ' '
print(result)

input_list = ['나는', '피자', '이다']
len(input_list)



result = ''
for i in range(len(input_list)) :
    for x in input_list :
        if dic[x][1] == i :
            result = result + dic[x][0] + ' '
print(input_list)
print(result)
del(result)







import csv

file = open("D:\data\smt_dic.csv","r")
emp_csv = csv.reader(file)

for emp_list in emp_csv :
    print(emp_list[1], emp_list[3], emp_list[4])


for emp_list in emp_csv :
    smt_dic[emp_list[1] ] = (emp_list[3] , emp_list[4])

smt_dic['경솔']





smt_dic={} ## 튜플을 만든다
file=open("D:\data\smt_dic.csv","r") ## 파일을 로드한다.
emp_csv=csv.reader(file) ## csv를 다르게 읽어주는건가


for emp_list in emp_csv : ## 한글 영어간 매핑 만들어주는 라인
    smt_dic[ emp_list[1] ] = (emp_list[3], emp_list[4])
    smt_dic[ emp_list[2] ] = (emp_list[3], emp_list[4])
result = ""
input_kor = input('번역할 한글을 입력하세요~ ')
input_list = input_kor.split(' ')

for i in range(len(input_list)) :      ## i : 0,1,2
    for j in input_list :              ## 
        if smt_dic[j][1] == str(i) :
            result = result + smt_dic[j][0] + ' '

print(result)



smt_dic = {}
file = open("D:\data\smt_dic.csv", "r")
emp_csv = csv.reader(file)

for emp_list in emp_csv :
    smt_dic[ emp_list[1] ] = (emp_list[3], emp_list[4])
    smt_dic[ emp_list[2] ] = (emp_list[3], emp_list[4])
result = ""
input_kor = input("번역할 한글~")
input_list = input_kor.split(' ')

for i in range(len(input_list)) :
    for j in input_list :
        if smt_dic[j][1] == str(i) :
            result = result + smt_dic[j][0] + ' '

print(result)






s1 = set([1,2,3,4,5,6])
s2 = set([4,5,6,7,8,9])

s1 & s2

s1 | s2

s1 - s2



d = [1000, 2000, 3000, 4000]
print(d)






import csv

file = open("D:\data\emp2.csv", "r")
emp_csv = csv.reader(file)
for emp_list in emp_csv:
    if (emp_list[2]=='SALESMAN') and (int(emp_list[5]) >= 1200):
         print(emp_list[2], emp_list[5])



240 / 2**2

240 >> 2



1 <= 5 < 10




import time
import datetime
import pandas
import numpy


time.time()
time.ctime()

now = datetime.datetime.now()
print(now)


x, y= input().split()
x=int(x)
y=int(y)
res = 0

for i in range (x,0,-1):
    if i == x:
        res+=y
        continue
    
    if i in (1,3,5,7,8,10):
        res+=31
    elif i in (4,6,9,11):
        res+=30
    else :
        res+=28

res%=7
if res==0:
    print("SUN")
elif res==1:
    print("MON")
elif res==2:
    print("TUE")
elif res==3:
    print("WED")
elif res==4:
    print("THU")
elif res==5:
    print("FRI")
else:
    print("SAT")



def substr(var, num1, num2) :
    return var[num1-1:num2]

list = '12382923dksel'
substr(list,1,2)



x=int(input())

if 90<=x<=100:
    print("A")
elif 80<=x<90:
    print("B")
elif 70<=x<80:
    print("C")
elif 60<=x<70:
    print("D")
else :
    print("F")





import csv

file=open("D:\data\emp2.csv", "r")
emp_csv=csv.reader(file)
for emp_list in emp_csv:
    print(emp_list[1][0:2].lower())



import csv

file=open("D:\data\emp2.csv", "r")
emp_csv=csv.reader(file)
for emp_list in emp_csv:
    print(emp_list[1][0].upper() + emp_list[1][1:].lower())


def merge_string(*text_list):
    result=''

    for s in text_list:
        result=result+s+' '

    return result

merge_string("아버지가","방에","들어가신다.","부엌으로")


list = [1,2,3,4,5,7]
list.count()




def max_com(x,*y) :

    cnt_num=0
    while cnt_num < len(y) :
        if x < y[cnt_num] :
            (x , y[cnt_num]) = (y[cnt_num], x)
        
        cnt = 0
        while cnt <= x :
            cnt += 1
            if x%cnt == 0 and y[cnt_num]%cnt == 0 :
                max = cnt
        cnt_num += 1
        return max_com(max,y[cnt_num])


max_com(24,16, 8)



def max_com



def test(x,*y):
    print(*x)
    print(x)
    print(y)
    
    print(y[0])
    print(y[1])
    print(len(y))



test([1,2,3],2,3,4,5,6,7,8)






def max_com(i,x,*y) :

    i += 1
    if x < y[i] :
        (x , y[i]) = (y[i], x)
    
    cnt = 0
    while cnt <= x :
        cnt += 1
        if x%cnt == 0 and y[i]%cnt == 0 :
            max = cnt
    
    
    return max_com(max,y[i])

max_com(0,24,16,8)



import csv
file = open("D:\data\emp2.csv", 'r')
emp_csv = csv.reader(file)


##
file=open("D:\\data\\frozen.txt",'r')
for winter_list in file:
    a = winter_list.split(' ')
    print(a)

file=open("D:\\data\\frozen.txt", 'r')
for winter_list in file:
    a=winter_list.split(' ')
    for b in a:
        print(b[:1].upper() + b[1:].lower())


file = open("D:\\data\\frozen.txt",'r')

for winter_list in file :
    a = winter_list.split(' ')
    for b in a :
        print(b.lower(), b.lower().count('elsa'))
 

file = open("D:\\data\\frozen.txt",'r')
sum=0
for winter_list in file :
    a = winter_list.split(' ')
    for b in a :
        if 1 == b.lower().count('elsa') :
            sum += 1
print(sum)


file = open("D:\\data\\frozen.txt",'r')
sum=0
for winter_list in file :
    a = winter_list.split(' ')
    for b in a :
        if 1 == b.lower().count('anna') :
            sum += 1
print(sum)






sum=0
file = open('D:/data/NIV.txt','r')
for a in file:
    a = a.split(' ')
    for b in a :
        if b.lower().count('god') == 1 :
            sum+=1
            
print(sum)


sum=0
file = open('D:/data/NIV.txt','r')
for a in file:
    a = a.split(' ')
    for b in a :
        if b.lower().count('jesus') == 1 :
            sum+=1
            
print(sum)



id(data1)
id(data2)
id(data3)
id(data4)
id(data5)

data1='i am python programer'

data2="you are a programer"

data3=""" i love

          i love

          i love """



data4="my son's names is john"    # 문자열에 싱글을 나타내고 싶으면

data5='name of my son is "john"'  # 문자열에 더블을 나타내고 싶으면 


for i in range(5):
    i+=1
    temp="data"+str(i)
    print(eval(temp))
    

for i in range(1,6):
    dt = "data"+str(i)
    print(locals()[dt])

    


from time import sleep

for i in range(100) :
    msg = '\r 진행률 %d%%' %(100-i-1)
    print(msg, end='')
    sleep(0.1)





file = open("D:\\data\\frozen.txt",'r')
sum=0
for winter_list in file :
    a = winter_list.split(' ')
    for b in a :
        if 1 == b.lower().count('anna') :
            sum += 1
        msg = '\r %d개' %(sum)
        print(msg, end='')
print('')
print("anna의 갯수 : ",sum,"개")


x=input("뭐?")

file = open("D:\\data\\frozen.txt",'r')
sum=0
for winter_list in file :
    a = winter_list.split(' ')
    for b in a :
        if 1 == b.lower().count(x) :
            sum += 1
        msg = '\r %d개' %(sum)
        print(msg, end='')
print('')
print("%s의 갯수 : %d 개" % (x,sum))








import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
sal_list=[]

cnt=0
for x in emp_csv :
    if cnt ==0:
        cnt+=1
        continue
    sal_list.append(int(x[5]))            

for i in sal_list:
    print(i)

sal_list.sort()

for i in sal_list:
    print(i)

sal_list.reverse()

for i in sal_list:
    print(i)




            
            
import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
sal_list=[];name_list=[];

cnt=0
for x in emp_csv :
    if cnt ==0:
        cnt+=1
        continue
    sal_list.append(int(x[5]))
    name_list.append(x[1])            

temp=[]
for x in range(len(sal_list)):
    temp.append(str(sal_list[x])+ " : " +name_list[x])



def colcheck(data):
    return data[5]

import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
emp_list=[]
sal_list=[];name_list=[];

for i in emp_csv:
    emp_list.append(i)

emp_list_sort = sorted(emp_list, reverse=True, key=colcheck)

for i in emp_list_sort :
    print(i[1], i[5])
    






def colcheck(data):
    return data[4]

import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
emp_list=[]
sal_list=[];name_list=[];

for i in emp_csv:
    emp_list.append(i)

emp_list_sort = sorted(emp_list, reverse=True, key=colcheck)

for i in emp_list_sort :
    print(i[1], i[4])
    



def colcheck(data):
    return data[4]

import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
emp_list=[];sal_list=[];

cnt=0
for i in emp_csv:
    if cnt==0:
        cnt+=1
        continue
    sal_list.append(int(i[5]))

print( max(sal_list))








def colcheck(data):
    return data[5]

import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
emp_list=[]
sal_list=[];name_list=[];

for i in emp_csv:
    emp_list.append(i)

emp_list_sort = sorted(emp_list, reverse=True, key=colcheck)

temp=0;cnt=0;
for i in emp_list_sort :
    if i[2]=="SALESMAN":
        temp+=int(i[5])
        cnt+=1

print("평균 월급은 :", temp/cnt)
    
    
import csv
emp_file = open("D:/data/emp2.csv")
emp_csv= csv.reader(emp_file)
emp=[]

for i in emp_csv :
    emp.append({'empno':i[0], 'ename':i[1], 'job':i[2],
                'mgr':i[3], 'iredate':i[4], 'sal':i[5],
                'comm':i[6], 'deptno':i[7] } )

for emp_dic in emp:
    print(emp_dic['ename'], emp_dic['sal'], emp_dic['job'])


## 106
          
import csv
dept_file = open("D:/data/dept.csv")
dept_csv= csv.reader(dept_file)
next(dept_csv, None)
dept=[]

for i in dept_csv :
    dept.append({'deptno':i[0], 'dname':i[1], 'loc':i[2]} )

for i in dept:
    print(i['deptno'], i['dname'], i['loc'])

            
for e in emp :
    for d in dept :
        if e['deptno']==d['deptno']:
            print( e['ename'], d['loc'])





      
       
from calendar import monthrange
        
print(last_day('2017-12-14'))


def last_day(day) :
    





def next_day(input, weekday):
	weekday_dic={}
	weekday_dic['월요일']=0
	weekday_dic['화요일']=1
	weekday_dic['수요일']=2
	weekday_dic['목요일']=3
	weekday_dic['금요일']=4
	weekday_dic['토요일']=5
	weekday_dic['일요일']=6

nextday()


import datetime
import date

date.today()
datetime.timedelta(days=2)


date.today() + datetime.timedelta(days=2)
date.today().weekday()

print(next_day('2017-12-14', '토요일') )





param = 10
strdata = '전역변수'

def func1():
   strdata = '지역변수'
   print(strdata)
   
def func2(param):
   param = 1
   
def func3():
   global param
   param = 50
   
func1()                  # ‘지역변수’가 출력됨
print(strdata)           # ‘전역변수’가 출력됨
print(param)             # 10이 출력됨
func2(param)
print(param)             # 10이 출력됨
func3()
print(param)             # 50이 출력됨

    
pi=3.1415926535
def piArea(r):
    return r*r*pi

def piAreaMany(*r):
    area=0
    for i in r:
        area+=piArea(i)
    return area

def piAreaMany(*r):
    return sum([piArea(r[i]) for i in range(len(r))])


print(piArea(5))
print(piAreaMany(5,8))
print(piAreaMany(1,2,3,4,5))
print(piAreaMany(1,2,3,4,5))






import cal_test3

print(cal_test3.plus(10,5))
print('name : {0}'.format(__name__) )



    




import PIL.Image as pilimg
import numpy as np
import matplotlib.pyplot as plt

im = pilimg.open('D:\data\sun.jpg')

pix=np.array(im)

plt.imshow(pix)


## 49

class MyClass:
   var = '안녕하세요'
   def sayHello(self):
      print(self.var)

obj = MyClass()    # MyClass 인스턴스 객체 생성
print(obj.var)     # ‘안녕하세요’가 출력됨
obj.sayHello()     # ‘안녕하세요’가 출력됨






class gun():
    def __init__(self): # 반드시 있어야하는 부분
        self.nullet = 0

    def charge(self, num) : # 충전하는 기능
        self.bullet = num

    def shoot(self, num) : # 쏘는 기능
        for i in range(num):
            if self.bullet > 0 :
                print('탕 !')
                self.bullet -= 1
            elif self.bullet == 0:
                print('총알이 없습니다.')
                break
    def print(self):
        print('{} 발 남았습니다.'.format(self.bullet))


a=gun()

a.charge(10)
a.shoot(2)
a.shoot(3)
a.print()


while 1 :
    a.charge(24)
    a.shoot(2)
    a.shoot(3)
    a.shoot(2)
    a.shoot(3)
    a.print()
    
    a.shoot(2)
    a.shoot(3)
    a.shoot(2)
    a.shoot(3)
    a.print()
    
    a.shoot(2)
    a.shoot(2)
    a.print()
    
    a.shoot(1)
    



class goril() :
    def __init__(self) :
        self.nul=0
        self.bana=0
    def Shout(self, num):
        for i in range(num):
            if self.bana <= 0:
                print('바나나가 먹고싶어..')
            else :
                print("우와~~~!")
                self.bana-=1
    def walk(self, num):
        for i in range(num):
            if self.bana <= 0:
                print('바나나가 먹고싶어..')
            else :
                print('앞으로 걸어갑니다.')
                self.bana-=1
    def eat(self, num):
        for i in range(num):
            print('우걱우걱')
            self.bana+=1
        
    def leftBana(self):
        print("바나나 남은 갯수 : %d" % self.bana)
        

a=goril()
a.eat(10)
a.Shout(5)
a.walk(7)



## 162

import pandas as pd

emp = pd.DataFrame.from_csv("D:\data\emp.csv")
emp2 = pd.read_csv("D:\data\emp.csv")
emp2


## 163


emp2 = pd.read_csv("D:\data\emp.csv")
emp2
print(emp2[['ename','sal']])


## 164

print(emp2[['ename','sal']][emp2['sal']>=3000])

## 165

k = input('<값>을 입력하세요 : ')
print('당신이 입력한 값은 <' + k +'>입니다.')

## 166

ename2 = input('이름을 입력하세요')
emp2 = pd.read_csv("D:\data\emp.csv")
print(emp2[['ename','job','sal']][emp2['ename']==ename2])


##

df = pd.read_excel('http://qrc.depaul.edu/Excel_Files/Presidents.xls')
df


df['Political Party'].value_counts().plot(kind="pie")
df['Political Party'].value_counts().plot(kind="bar")


import numpy as np

b = np.array([2,4,6,8])
print(b)
print(type(b))

#2. b 배열의 차원수(랭크)를 확인한다.

print(b.ndim)
print(a.ndim)

#3. b 배열에 있는 값들의 총 갯수를 확인한다.

print(b.size)

#4. b 배열의 행렬 모양을 확인한다.

print(b.shape)


## 167.
a=np.array([[1,2,3],[4,5,6]])
print(a)
print(a.shape)


## 168

a1 = np.array([[1,2,3],[4,5,6],[7,8,9]])
a2 = np.array([[3,2,1],[6,5,4],[9,8,7]])
print(a1)
print(a2)

print(a1*a2) ## 각 요소에 대한 곱 연산
print(a1.dot(a2)) ## 행렬곱




## 

import numpy as np
a = np.zeros((2,2))
print(a)

b = np.ones((2,2))
print(b)

## 170
a = np.full((2,2),3)
print(a)

# 171.
a = np.eye(3)
print(a)

## 172.

a = np.random.random((2,2))
print(a)

## 173.

m1 = np.full((2,2),10)
m2 = np.full((2,2),3)

res=m1%m2
print(res)


import numpy as pd
import numpy.linalg as lin





a = np.array([[3,2,1],[1,-1,3],[3,4,-2]])
b = np.array([7,3,1])

c = lin.solve(a,b)
c
lin.det(a)
lin.inv(a)


a = np.array([[1,2,3,4],[5,6,7,8],[9,10,11,12]])

b = a[:2, 1:3]
print(b)
print(a.dim)


## 177
print(a[0, ])
print(a[:a.ndim+1 ,1])


import numpy as np

a = np.array([[1,2],[3,4],[5,6]])
c = (a>2)
print(c)


  1  2
  3  4
  5  6
  
  
import numpy as np
import matplotlib.pyplot as plt

x = np.array([0,1,2,3])
y = np.array([-1,0.2,0.9,2.1])

plt.plot(x,y)
plt.grid(True)
plt.show()





lst = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]
a = np.array(lst)
 
bool_indexing_array = np.array([
    [False,  True, False],
    [True, False,  True],
    [False,  True, False]
])
 
n = a[bool_indexing_array];
print(n)  

bool_indexing_array = ( a%2 == 1 )



## 178

import numpy as np
import matplotlib.pyplot as plt


## 179
x=np.linspace(-4,4,1024)

x=np.array(range(-15,25))
y=x*4+10

plt.plot(x,y,c='k')
plt.title("lunch")
plt.grid()
plt.axvline(x=0, color = 'b')
plt.axhline(y=0, color = 'b')
plt.show()


## 180

import pandas as pd

emp = pd.read_csv("D:\data\emp.csv")

result = emp[['ename','sal']][~((emp['sal'] >= 1000) & (emp['sal'] <= 3000))]
print(result)


## 181

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")

result = emp[['ename','job']][emp['job'].isin (['SALESMAN','ANALYST'])]
print(result)


## 182
emp[['ename','comm']][emp['comm'].isnull()]


## 183
emp[['ename','comm']][~emp['comm'].isnull()]
emp[['ename','comm']][emp['comm'].notnull()]




def hap(x,y):
    return x + y

print(hap(10,20))

print((lambda x,y: x + y)(10,20))



import pandas as pd
emp = pd.DataFrame.from_csv("D:\data\emp.csv")

result = emp['ename'].apply(lambda x:x[len(x)-1]=='T')
result2 = emp[['ename']][result==True]
print(result2)

print(emp[['ename']][emp['empno']==7788])




result = emp['ename'].apply(lambda x:x[-1]=='T')
result2 = emp[['ename']][result==True]
print(result2)



## 185
import pandas as pd
emp = pd.read_csv("D:\data\emp9.csv", engine='python')
print(emp)


## 186

result = emp[['ename','major']][emp['major']=='심리']
print(result)

## 187

result = emp[['ename','age','telecom']][emp['telecom'].isin(['sk','lg'])]
print(result)

## 188

result = emp[['ename','address']][emp['ename'].apply(lambda x:x[0]=='김')]
print(result)

## 189

result = emp[['ename','age']][~(emp['age']>=30)]
print(result)





  
import pandas as pd

emp = pd.read_csv("D:\data\emp.csv")
dept = pd.read_csv("D:\data\dept.csv")

result = pd.merge(emp, dept, on='deptno')    

print(result[['ename','loc']][result['loc']=='DALLAS'])
    


## 192
import pandas as pd

emp = pd.read_csv("D:\data\emp.csv")
dept = pd.read_csv("D:\data\dept.csv")

result = pd.merge(emp, dept, on='deptno', how='left')

print(result[['ename','loc']])
    
    
    
import pandas as pd

cust = pd.read_csv("D:\data\\L1.txt", engine='python')
prod = pd.read_csv("D:\data\\L4.txt", engine='python')
memb = pd.read_csv("D:\data\\L4.txt", engine='python')
comp = pd.read_csv("D:\data\\L4.txt", engine='python')

result = emp[['']]

## head랑 비슷한 기능
result[:5]
result.head(7)
    
result = pd.merge(cust, comp, on='고객번호', how='left')
print(result[['고객번호', '성별','연령대','제휴사','이용년월']][result['연령대']=='60세이상'])



import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
scottmgr = emp[['mgr']][emp['ename']=='SCOTT'].values[0]
result = emp[['ename']][emp['empno'] == scottmgr[0]]
print(scottmgr)
print(result)



## 198
select ename
  from emp
  where empno in ( select mgr
                     from emp );

result1 = emp[['ename']][emp['empno'].isin(emp['mgr'])]
print(result1)


## 199

result2 = emp[['ename']][~emp['empno'].isin(emp['mgr'])]
print(result2)


# 200

select ename, sal
  from emp
  where sal = (select max(sal) 
                 from emp ) ;

result2 = emp[['ename','sal']][emp['sal']==(max(emp['sal']))]
print(result2)

## 201

최근에 멤버쉽에 가입한 고객의 고객번호, 성별과
거주지를 출력하시오



cust = pd.read_csv("D:\data\\L1.txt", engine='python')
prod = pd.read_csv("D:\data\\L4.txt", engine='python')
memb = pd.read_csv("D:\data\\L4.txt", engine='python')
comp = pd.read_csv("D:\data\\L5.txt", engine='python')

result = emp[['']]

## head랑 비슷한 기능
result.head(7)
    
result = pd.merge(cust, comp, on='고객번호', how='left')
print(result[['고객번호', '성별','연령대','제휴사','이용년월']][result['연령대']=='60세이상'])

cust.head(7)
memb.head(7)
comp.head(7)
result.head(5)

result = pd.merge(cust, comp, on='고객번호', how='left')

result[['고객번호','성별','거주지역','가입년월']]\
[result['가입년월'] == np.max(result['가입년월'])]



## 203
import pandas as pd
emp = pd.DataFrame.from_csv("D:\data\emp.csv")
emp['sal'] = emp['sal'] * 0.15

emp['sal'] = emp['sal'].round()

print( emp[['ename','sal']] )


## 204
emp = pd.DataFrame.from_csv("D:\data\emp.csv")
emp['sal'] = emp['sal'] * 0.15

emp['sal'] = emp['sal'].round(-2)
print( emp[['ename','sal']] )


## 205

import csv
file = open("D:\data\emp.csv","r")
emp_csv = csv.reader(file)

next(emp_csv, None)
for emp_list in emp_csv :
    print(emp_list[1], int(emp_list[5])*12 )


## 207
import csv
file = open("D:\data\emp2.csv","r")
emp_csv = csv.reader(file)

next(emp_csv, None)
for emp_list in emp_csv :
    print(emp_list[1], float(emp_list[5])*12 )



def getPrime(x):
    for i in range(2, x-1):
        if x%i == 0:
            break
    else :
        return x


listdata = [117, 119, 1113, 11113, 11119]
ret = filter(getPrime, listdata)
print(list(ret))


for i in range(100):
    print(getPrime(i))



## 208
    
def ename_first(x) :
    return x[0] == 'S' 
    
import pandas as pd

emp = pd.DataFrame.from_csv("D:\data\emp.csv")
result = emp['ename'].apply(ename_first)
result2 = emp[['ename']][result==True]
print(result2)





listdata = [9.96, 1.27, 5.07, 6.45, 8.38, 9.29, 4.93, 7.73, 3.71, 0.93]
maxval = max(listdata)
minval = min(listdata)
print(maxval)     # 9.96이 출력됨
print(minval)     # 0.93이 출력됨

txt = 'Alotofthingsoccureachday'
maxval = max(txt)
minval = min(txt)
print(ord('9'));     # ‘y’가 출력됨
print(ord(minval))     # ‘A’가 출력됨

maxval = max(2+3, 2*3, 2**3, 3**2)
minval = min('abz', 'a12')
print(maxval)    # 9가 출력됨
print(minval)     # ‘abz’가 출력됨




## 210

import csv

file = open("D:\data\emp2.csv","r")
emp_csv = csv.reader(file)
sal_list=[]

for i in emp_csv :
    sal_list.append(int(i[5]))
maxsal = max(sal_list)
print(maxsal)


## 211

import csv

file = open("D:\data\emp2.csv","r")
emp_csv = csv.reader(file)
sal_list=[]

for i in emp_csv :
    if i[2] == "SALESMAN" :    
        sal_list.append(int(i[5]))

print(sum(sal_list) // len(sal_list))


## 212

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
print( emp['sal'].max())

# 213

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
result=emp['sal'][emp['job']=='SALESMAN']
result2=result.mean()
print(result2)


## 214

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
result = emp.groupby('job')['sal'].max()
print(result)


## 215

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
result = emp.groupby(['deptno','job'])['sal'].sum()
print(result)

## 216

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
result = emp.groupby(['job'])['job','sal'].sum()
result2 = result[['sal']][result['sal']>=4000]
print(result2)

## 217
import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
emp = emp[emp['job'] != 'SALESMAN']
result = emp.groupby(['job'])['job','sal'].sum()
result2 = result[['sal']][result['sal']>=6000]
print(result)
print(result2)


## 217

import pandas as pd

cust = pd.read_csv("D:\data\\L1.txt", engine='python')
comp = pd.read_csv("D:\data\\L4.txt", engine='python')
memb = pd.read_csv("D:\data\\L5.txt", engine='python')
chan = pd.read_csv("D:\data\\L6.txt", engine='python')

print(chan)

maxUse = chan['이용횟수'].max()
result = chan[['고객번호','이용횟수']][chan['이용횟수']==maxUse]
print(result)


## 218

memb.head()

subGroup = memb.groupby(['가입년월'])['가입년월'].count()
print(subGroup)


## 219

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")

result = emp[['ename','sal']].sort_values('sal', ascending = False)
print( result )


## 220
subGroup = memb.groupby(['가입년월'])['가입년월','고객번호'].count()
result = subGroup[['고객번호']].sort_values('고객번호', ascending = False) 
result = result[['고객번호']][result['고객번호'] >= 200]
print(result)


## 221
import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")

emp['rnk'] = emp['sal'].rank(ascending=1).apply(int)
emp = emp.sort_values('rnk', ascending=True)
print(emp[['ename','sal','rnk']])


## 222

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")

emp['rnk'] = emp['sal'].rank(ascending=1).apply(int)
emp = emp.sort_values('rnk', ascending=True)
print(emp[['ename','sal','rnk']])









class Oracle_func():
    
    def __init__(self):        
        self.banana = 0
        
    def instr(self, arg,a):
        l = len(arg)
        result = 0
        for i in range(l):
            if arg[i] == a:
                result = i+1
        return result
    
    def substr(self, var, num1, num2):
        return var[num1-1:num1+num2-1]
    
    def initcap(self,val):
        return val[0].upper() + val[1:].lower()


import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
result = emp['ename'].apply(oracle.initcap)
print(result)




a=[]
a.append(1)
a.append(2)
a.append(3)

z=a.pop()
z



import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")
result = emp['sal'].apply(oracle.rpad(10,'*'))
print(result)




class Oracle_func():
    
    def __init__(self):        
        self.banana = 0
        
    def instr(self, arg,a):
        l = len(arg)
        result = 0
        for i in range(l):
            if arg[i] == a:
                result = i+1
        return result
    
    def substr(self, var, num1, num2):
        return var[num1-1:num1+num2-1]
    
    def initcap(self,val):
        return val[0].upper() + val[1:].lower()
    
    def lpad(self, val, num, char):
        return char*(num-len(str(val))) + str(val)


## or

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")

oracle = Oracle_func()
for i in emp['sal'].values:
    print(oracle.lpad(i,10,'*'))

oracle = Oracle_func()
for i in emp['sal'].values:
    print(oracle.rpad(i,10,'*'))



class Oracle_func():
    
    def __init__(self):        
        self.banana = 0
        
    def instr(self, arg,a):
        l = len(arg)
        result = 0
        for i in range(l):
            if arg[i] == a:
                result = i+1
        return result
    
    def substr(self, var, num1, num2):
        return var[num1-1:num1+num2-1]
    
    def initcap(self,val):
        return val[0].upper() + val[1:].lower()
    
    def lpad(self, val, num, char):
        return char*(num-len(str(val))) + str(val)
    
    def rpad(self, val, num, char):
        return str(val) + char*(num-len(str(val)))




## 231


class Oracle_func():
    
    def __init__(self):        
        self.banana = 0
        
    def instr(self, arg,a):
        l = len(arg)
        result = 0
        for i in range(l):
            if arg[i] == a:
                result = i+1
        return result
    
    def substr(self, var, num1, num2):
        return var[num1-1:num1+num2-1]
    
    def initcap(self,val):
        return val[0].upper() + val[1:].lower()
    
    def lpad(self, val, num, char):
        return char*(num-len(str(val))) + str(val)
    
    def rpad(self, val, num, char):
        return str(val) + char*(num-len(str(val)))
    
    def add_months(self, date, addmonth):
        import datetime as dt
        from dateutil.relativedelta import relativedelta as rd
        
        temp = dt.datetime.strptime(date, '%Y-%m-%d')
        temp2 = temp + rd(months=+addmonth)
        
        return temp2

    def next_day(self, date, day):
        import datetime as dt
        import datetime as dt
        from dateutil.relativedelta import relativedelta as rd
        
        week_day = ['월요일','화요일','수요일','목요일','금요일','토요일','일요일']
        temp = date.weekday() ## date의 월~일로 표현되는 숫자가 담기는 부분
        temp2 = week_day.index(day) ## day의 월~일로 표현되는 숫자가 담기는 부분
        
        numday=0;
        if temp < temp2:
            numday = temp2 - temp
            temp3 = date + rd(days=+numday)
            return temp3
        elif temp > temp2:
            numday = (7-temp) + temp2
            temp3 = date + rd(days=+numday)
            return temp3
        else :
            return date
        
    def last_day(self, num):
        import datetime

        from datetime import datetime as date

        from calendar import monthrange

        temp = date.split('-')
        a = monthrange(int(temp[0]),int(temp[1]))
        result = '{0}-{1}-{2}'.format(temp[0], temp[1], a[1])

        return result



import oracle_function

oracle = Oracle_func()

import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")





import pandas as pd
emp = pd.read_csv("D:\data\emp.csv")

emp.head()
emp['hiredate'][0][:5]

for i in emp['hiredate'].values:
    print(i)

for i in emp['hiredate'].values:
    print(oracle.add_months(i,3))
    






def find_word():
    x=input("찾을 단어를 입력하세요~")
    file = open("D:\\data\\frozen.txt",'r')
    sum=0
    
    for winter_list in file : # 스크립트를 리스트로 변환
        a = winter_list.split(' ') # 공백으로 단어를 구분
        for b in a : # 단어를 하나씩 b에 담는 것
            if 1 == b.lower().count(x) :
                sum += 1
            msg = '\r %d개' %(sum)
            #print(msg, end='')
    print('')
    return "{0}의 갯수 : {1} 개".format(x,sum)
    



    
    




class Oracle_func():
    
    def __init__(self):        
        self.banana = 0
        
    def instr(self, arg,a):
        l = len(arg)
        result = 0
        for i in range(l):
            if arg[i] == a:
                result = i+1
        return result
    
    def substr(self, var, num1, num2):
        return var[num1-1:num1+num2-1]
    
    def initcap(self,val):
        return val[0].upper() + val[1:].lower()
    
    def lpad(self, val, num, char):
        return char*(num-len(str(val))) + str(val)
    
    def rpad(self, val, num, char):
        return str(val) + char*(num-len(str(val)))
    
    def add_months(self, date, addmonth):
        import datetime as dt
        from dateutil.relativedelta import relativedelta as rd
        
        temp = dt.datetime.strptime(date, '%Y-%m-%d')
        temp2 = temp + rd(months=+addmonth)
        
        return temp2

    def next_day(self, date, day):
        import datetime as dt
        import datetime as dt
        from dateutil.relativedelta import relativedelta as rd
        
        week_day = ['월요일','화요일','수요일','목요일','금요일','토요일','일요일']
        temp = date.weekday() ## date의 월~일로 표현되는 숫자가 담기는 부분
        temp2 = week_day.index(day) ## day의 월~일로 표현되는 숫자가 담기는 부분
        
        numday=0;
        if temp < temp2:
            numday = temp2 - temp
            temp3 = date + rd(days=+numday)
            return temp3
        elif temp > temp2:
            numday = (7-temp) + temp2
            temp3 = date + rd(days=+numday)
            return temp3
        else :
            return date
        
    def last_day(self, num):
        import datetime

        from datetime import datetime as date

        from calendar import monthrange

        temp = date.split('-')
        a = monthrange(int(temp[0]),int(temp[1]))
        result = '{0}-{1}-{2}'.format(temp[0], temp[1], a[1])

        return result
    
    def find_word(self):
        x=input("찾을 단어를 입력하세요~")
        file = open("D:\\data\\frozen.txt",'r')
        sum=0
        
        for winter_list in file : # 스크립트를 리스트로 변환
            a = winter_list.split(' ') # 공백으로 단어를 구분
            for b in a : # 단어를 하나씩 b에 담는 것
                if 1 == b.lower().count(x) :
                    sum += 1
                msg = '\r %d개' %(sum)
                #print(msg, end='')
        print('')
        return "{0}의 갯수 : {1} 개".format(x,sum)
        


import oracle_function

oracle = Oracle_func()
print(oracle.find_word())



class Text_mining():
    def find_word(self):
        x=input("찾을 단어를 입력하세요~")
        file = open("D:\\data\\frozen.txt",'r')
        sum=0
        
        for winter_list in file : # 스크립트를 리스트로 변환
            a = winter_list.split(' ') # 공백으로 단어를 구분
            for b in a : # 단어를 하나씩 b에 담는 것
                if 1 == b.lower().count(x) :
                    sum += 1
                msg = '\r %d개' %(sum)
                #print(msg, end='')
        print('')
        return "{0}의 갯수 : {1} 개".format(x,sum)


tm = Text_mining()

print (tm.find_word())




p_text = open("D:\data\positive-words.txt", 'r')


for i in p_text:
    print(i)





## 236

import time

dict = open("D:\data\positive-words.txt", 'r')
text_file = open("D:\\data\\frozen.txt",'r')

text = [];
for winter_list in text_file:  # 스크립트를 리스트로 바꾸는 과정
    #print(winter_list)
    a = winter_list.split(' ')  # 한줄을 공백으로 자르는 과정
    print(a)
    for i in a:
        text.append(i.lower())

positive = []
for i in dict:
    positive.append((re.sub("\n",'',i)).lower())  # 엔터를 '' 로 바꿔라

count = 0
for i in text:
    if i in positive:
        count += 1
print(count)



## 237

tp = Text_mining()
result = tp.positive("D:\data\Sherlock.txt")
print(result)

###


class Text_mining():
    def find_word(self):
        x=input("찾을 단어를 입력하세요~")
        file = open("D:\\data\\frozen.txt",'r')
        sum=0
        
        for winter_list in file : # 스크립트를 리스트로 변환
            a = winter_list.split(' ') # 공백으로 단어를 구분
            for b in a : # 단어를 하나씩 b에 담는 것
                if 1 == b.lower().count(x) :
                    sum += 1
                msg = '\r %d개' %(sum)
                #print(msg, end='')
        print('')
        return "{0}의 갯수 : {1} 개".format(x,sum)
    
    def positive(self, file):
        sherlock = open(file, 'r')
        posi_dic = open("D:\data\positive-words.txt", 'r')
        
        ## posi_dic 정제
        positive=[]
        for i in posi_dic:
            positive.append(re.sub("\n",'',i).lower())
        
        text=[]
        for i in sherlock:
            a = i.split(' ')
            for j in a:
                text.append(j.lower())
        
        cnt=0
        for i in text:
            if i in positive:
                cnt+=1
        return cnt





with open("script.csv", "w") as f:
    w = csv.writer(f)
    w.writerows(empty_list)


import csv

sherlock = open("D:\data\Sherlock.txt", 'r')
posi_dic = open("D:\data\positive-words.txt", 'r')

## posi_dic 정제
positive=[]
for i in posi_dic:
    positive.append(re.sub("\n",'',i).lower())
print(positive)

##Sherlock
text=[]
for i in sherlock:
    a = i.split(' ')
    for j in a:
        text.append(re.sub("\n",'',j).lower())
print(text)


with open("D:\\script200.csv", "w") as f:
    w = csv.writer(f)
    w.writerows(text)


cnt=0
for i in text:
    if i in positive:
        cnt+=1
print(cnt)




import pandas as pd

file = open("D:\data\emp.csv",'r')

for i in file:
    print(i)


for emp_list in file:
    print(emp_list[1], lower(emp_list[1]))


def lower(word):
    return word.lower()







def rtrim(a, b):
    return a.rstrip(b)    
def ltrim(a, b):
    return a.lstrip(b)
print( rtrim('smith','h') )
print( ltrim('smith','m') )


def rtrim(word, w):
    if word[-1] == w:
        return word[:-1]    
print( rtrim('smith','h') )





def hap(a,b):
    print (a+b)

def gop(a,b):
    print (a*b)

def hap_gop(a,b):
    hap(a,b)
    gop(a,b)


print(hap_gop(1,2))







def countdown(n):
    if n == 0:
        print('발사')
    else:
        print(n)
        return countdown(n-1)

countdown(5)



## 250

def gugu(n,m):
    if m == 0:
        print()
    else :
        print('%d x %d = %d' % (n, m, n*m))
        return gugu(n, m-1)

gugu(2,10)
gugu(3,10)
gugu(7,10)
gugu(9,10)
gugu(2,20)




def two_dan(m):
    if m == 0:
        print()
    else :
        print('2 x %d = %d' % (temp-m+1, 2*(temp-m+1)))
        return two_dan(m-1)


two_dan(2,20)





def gugu(n):
    if n>0:      
        gugu(n-1)
        print(2,'x',n,'=',2*n)
            
gugu(20)




def printstar(n):
    if n>0:      
        printstar(n-1)
        print('★'*n, end='')
        print()
            
printstar(7)



def factorial2(n):
    if n <= 1:
        return 1
    else :
        return n * factorial2(n-1)


factorial2(5)


def find_gcd(num1, num2):
    if num2==num1:
        return num2
    elif num1 > num2 :
        num1 -= num2
        return find_gcd(num1, num2)
    elif num1 < num2 :
        num2 -= num1
        return find_gcd(num1, num2)
    
    
print( find_gcd(150,90) )



print( find_gcd(108,72) )




## 256.

def binarySearch(data, num):
    leng=len(data);cnt=0;
    data = sorted(data)
    
    ## iteration count
    while leng > 1 :
        leng /= 2
        cnt += 1
    leng = round(len(data) / 2)
    
    ## binary search
    indi = round(len(data)/2)-1 ## 가운데로 위치 초기화
    check=0
    for i in range(cnt):
        if data[indi] == num:
            check+=1
            break
        elif data[indi] > num:
            indi-= round(leng/2)
            leng=round(leng/2)
        elif data[indi] < num:
            indi+= round(leng/2)
            leng=round(leng/2)
    
    if check==1:
        return "%d 가 있습니다." % num
    elif check==0:
        return "%d 가 없습니다." % num
        

binarySearch(data, 51)
binarySearch(data, 50)


data = [1,7,11,12,14,23,33,47,51,64,67,77,130,672,871]


15//2
    
# 257

def binary_search(data, num):
    if len(data)==0:
        return '%d 은 존재하지 않습니다.' % num
    
    if data[len(data)//2]==num:
        return '%d 은 존재합니다.' % num
    elif data[len(data)//2] > num:
        return binary_search(data[:len(data)//2], num)
    elif data[len(data)//2] < num:
        return binary_search(data[len(data)//2+1:], num)

data = [1,7,11,12,14,23,33,47,51,64,67,77,130,672,871]
    
for i in data:
    print(binary_search(data,i))
    


binary_search(data,33)
    
    
    






def colcheck(data):
    return data[5]

import csv
file=open("D:/data/emp.csv",'r')
emp_csv = csv.reader(file)
emp_list=[]
sal_list=[];name_list=[];

for i in emp_csv:
    emp_list.append(i)

emp_list_sort = sorted(emp_list, reverse=True, key=colcheck)

for i in emp_list_sort :
    print(i[1], i[5])



import pandas as pd
emp = pd.read_csv("D:\\data\\emp.csv")

result = emp[['ename','sal']][emp['sal']>= 3000].sort_values('sal', ascending=False)
print(result)

emp.head()

result = emp[['empno', 'ename', 'job']][emp['deptno']==20].sort_values('empno', ascending=False)
print(result)





solarsys = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성', '지구']
planet = '지구'
pos = solarsys.index(planet)
print('%s은(는) 태양계에서 %d번째에 위치하고 있습니다.' %(planet, pos))
pos = solarsys.index(planet, 5)
print('%s은(는) 태양계에서 %d번째에 위치하고 있습니다.' %(planet, pos))





solarsys = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성']
planet = '화성'
pos = solarsys.index(planet)
solarsys[solarsys.index('화성')] = 'Mars'
print(solarsys)




solarsys = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성']
rock_planets = solarsys[1:4]
gas_planets = solarsys[4:]
print('태양계의 암석형 행성: ', end=' ');print(rock_planets)
print('태양계의 가스형 행성: ', end=' ');print(gas_planets)



a = list(range(1, 21))
print()
evenlist = a[0::2]
print(evenlist)

listdata = list(range(5))
ret1 = reversed(listdata)
print('원본 리스트 ', end='');print(listdata);
print('역순 리스트 ', end='');print(list(ret1))



a = [4, 2, 1, 5, 9]
res = sorted(a)
print(res)
res1 =reversed(res)
print(res1)



## 269 
x = [5, 4, 3, 2, 1, 8, 7, 10]
num = len(x)

for i in range(num-1) :
    for j in range(num-1) :
        if x[j] > x[j+1]:
            x[j], x[j+1] = x[j+1], x[j]

print(x)


## Recursive Bubble Sort

def bubble(data, leng):
    if leng == 0:
        return data
    
    for i in range(len(data)-1):
        if data[i] > data[i+1]:
            data[i], data[i+1] = data[i+1], data[i] 
        
    return bubble(data,leng-1)

bubble(x, len(x))



a = [5, 4, 3, 2, 1, 8, 7, 10,1, 29, 101, 27]

def bub(data):
    try:    
        for i in range(len(data)-1):
            if data[i] > data[i+1]:
                data[i+1], data[i] = data[i], data[i+1]
        bub(data)
    except:
        print(data)

bub(x)



def bubble(a):
    try:
        for j in range(0,len(a)-1):
            if a[j] > a[j+1]:
                a[j], a[j+1] = a[j+1], a[j]
        bubble(a)
    except:
        print(a)

bubble(a)



def bubble(a):
    for j in range(0,len(a)-1):
        if a[j] > a[j+1]:
            a[j], a[j+1] = a[j+1], a[j]
            bubble(a)
            
    return a

bubble(a)


## insertion sort
x = [5, 4, 3, 2, 1, 8, 7, 10,1, 29, 101, 27]

temp=0
for i in range(1,len(x)):
    for j in range(0,i):
        if x[i] <= x[j]:
            temp=x[i]
            for z in range(i-j):
                x[i-z]=x[i-z-1]
            x[j]=temp;break;
print(x)


a=[5,4,3,2,1]
a[-(len(a)-1-1-1-1)]

len(a)

def insertion(data, index):
    ## Base Line
    if x == len(s):
        print(s)
    
    for j in range(len(s)):
        if s[x] < s[j]:
            temp=s[x]
            for z in range(x-j):
                s[x-z] = s[x-z-1]
            s[j]=temp;break;
    insertion(s, x+1)
    
insertion(a,1)


def ins(data, ind):
    ## Base Line 
    if ind == len(data):
        return data
   
    ## Recursive Line
    for i in range(ind):#len(data)-ind+1):
        #print(data, end=' ');print(i)
        if data[i] > data[ind]: 
            print(i, end = ' ');print(ind, end=' ');print(data);
            data.insert(i, data[ind])
            print(i, end = ' ');print(ind, end=' ');print(data);
            del data[ind+1]
            print(i, end = ' ');print(ind, end=' ');print(data);
            print()
        ins(data, ind+1)    
        
a=[5,4,3,2,1]
ins(a, 1)







a = []
for i in range(3):
   txt = input('리스트에 추가할 값을 입력하세요[%d/3]: ' %(i+1))
   a.append(txt)
   print(a)


solarsys = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성']
pos = solarsys.index('목성')
solarsys.insert(pos, '소행성')
print(solarsys)

a = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성']
del a[0]
print(a)
del a[-2]
print(a)

solarsys = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성']
solarsys.remove('태양')
print(solarsys)

solarsys = ['태양', '수성', '금성', '지구', '화성', '목성', '토성', '천왕성', '해왕성']
del solarsys[1:3]
print(solarsys)



listdata = [2, 2, 1, 3, 8, 5, 7, 6, 3, 6, 2, 3, 9, 4, 4]
c1 = listdata.count(2)
c2 = listdata.count(7)
print(c1)    # 3이 출력됨
print(c2)    # 1이 출력됨