学习变量，认识变量
#! /usr/bin/env python
# -*- coding:utf-8 -*-
'''
@Author:gcan
@Email:1528667112@qq.com
@Site:http://www.gcan.top
@File:var.py
@Software:PyCharm
@Date:2018-04-10 20:18:47
@Version:1.0.0
'''
message = "hello python world!"
print(message)
message = "Hello Python Crash Course World!"
print(message)
返回结果：
hello python world!
Hello Python Crash Course World!
