python 变量
声明变量 utf8
python2.x才需要声明
# -*- coding:utf-8 -*-
变量定义的规则：
- 变量名只能是 字母、数字或下划线的任意组合
- 变量名的第一个字符不能是数字
- 以下关键字不能声明为变量名
['and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'exec', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'not', 'or', 'pass', 'print', 'raise', 'return', 'try', 'while', 'with', 'yield']
变量的赋值以及注释
标准格式
# -*- coding:utf-8 -*-
# author = "zhuyouen"
name = "你好"
print(name)
注释：
- 单行：#
- 多行：'''......''' """....."""
例子
3.5开始支持中文
1 # author = "zhuyouen" 2 3 name = "你好" 4 print(name) 5 6 7 msg = ''' 8 name1 = "世界" 9 name2 = name1 10 print(name1,name2) 11 ''' 12 print(msg) 13 msg1 = "i'am a worlf" 14 15 print(msg1)
1 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0322/coding.py 2 你好 3 4 name1 = "世界" 5 name2 = name1 6 print(name1,name2) 7 8 i'am a worlf
例2
1 # author = "zhuyouen" 2 name = "佑恩" 3 print(name)
1 D:\python35\python.exe D:/PycharmProjects/zhuyouen/0322/day02.py 2 佑恩
