Celia-code

import calendar
#calendar.month(年, 月)
print(calendar.month(2020, 5))

Celia-code

import time
t = time.time()
result = time.ctime(t)
print(result)

Celia-code

import time
result = time.localtime()
print(result)

Celia-code

import time
time = time.time()
print(time)
result = time / (24 * 60 * 60 * 365) + 1970
print(result)

Celia-code

set1 = {1,2,3}
set2 = set((1, 2, 3))
print(set1)  # 打印出{1, 2, 3}
print(set2)  # 打印出{1, 2, 3}

Celia-code

a = {1,2,3}
a.remove(1)
print(a)

# 打印出{2, 3}

Celia-code

a = {1, 2, 3}
a.add(4)
print(a)

# 打印出{1, 2, 3, 4}

Celia-code

person = {'name': 'Amy', 'age': '18'}
for i in person.items():
    print(i)
    
# 打印出('name', 'Amy') ('age', '18')

Celia-code

person = {'name': 'Amy', 'age': '18'}
for i in person.values():
    print(i)

# 打印出 Amy 18

Celia-code

person = {'name': 'Amy', 'age': '18'}
for i in person.keys():
    print(i)

# 打印出 name age