import math
import study
from time import ctime

print(study.study_content())

print(math.sqrt(2))
print(math.log10(10))
print("ctime",ctime())


import datetime as date

print(date.datetime.now())
print(date.datetime.utcnow())


import datetime 

print(datetime.datetime)

from datetime import datetime

print(datetime.now())

from datetime import * 

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

print("----开始输出")
# 解释内容
# print("----注释")
print("----结束输出")

print("----开始多行注释")
"""
代码执行
print(123)
"""
print("----结束多行注释")