Celia-code

name = 'Python'
if name == 'Python':  # 判斷變量是否为'Python'
    print("Hello World")  # 打印Hello World
else:
    print(name)   # 條件不成立,打印出變量name

Celia-code

score = 85

if score > 90:
    print('優秀')
elif score > 80:
    print('良好')
elif score > 60:
    print ('及格')
else :
    print ('不及格')

Celia-code

# 打印 1—100間的偶數
# 首先創建一個1—100的集合，利用range函數，生成(1-100)的區間，所以最後得+1。
num = range(1, 101)
for n in num:
    if n % 2 == 0:
        print(n)
else:
    print("以上數字為1-100之内的偶數")

Celia-code

n = 0
total = 0
while (n < 10):
    n += 1  # 等同 n = n + 1 　　
    total += n
print(total)

Celia-code

n = 0
total = 0
while n < 10:
    # n += 1
    total += n
    print(total)

Celia-code

member = 0
amount = 0
total = 0
while amount != -1:
    member += 1
    total += amount
    amount = int(input("請輸入第 %d 會員消費金額:" % member))
average = total/(member - 1)
print("會員總消費金額: %d, 人均消費金額: %5.2f" % (total, average))

Celia-code

for i in range(11):
    if i == 7:
        break
    print(i)   #打印出1~6

Celia-code

for i in range(11):
    if i == 7:
        continue
    print(i)  # 打印出1~6, 8~10, 中間省略7

Celia-code

username = "user"

n = 1
while True:
    a = input("請輸入用戶名:")
    if n == 3 or a == username:
        print("輸入正確" if a == username else "輸入錯誤次數已超過3次")
        break
    else:
        print("用戶名有誤,請重新輸入!")

Celia-code

# 判斷1-100間的奇數及偶數

for i in range(1, 101):
    if i % 2 == 0:
        print("%d是偶數" % i)
    else:
        print("%d是奇數" % i)