python 三个引号作用

python的三个引号允许字符串跨多行使用，包括换行，TAB和任何其他特殊字符。三个引号包括单引号和多引号

使用引号，只能写一行，对齐全靠自己测试

multi_lines = "nice to meet you!\n  nice to meet you!\n    nice to meet you!"
print multi_lines

nice to meet you!
  nice to meet you!
    nice to meet you!

使用连接符，可以多行写字符串了，但仍然需要换行符

multi_lines = \
    "nice to meet you!\n" + \
    "  nice to meet you!\n" + \
    "    nice to meet you!"
print multi_lines

nice to meet you!
  nice to meet you!
    nice to meet you!

使用三个引号，按照文本原有格式书写即可

multi_line =  """
nice to meet you!
    nice to meet you!
      nice to meet you!
"""
print multi_line

nice to meet you!
  nice to meet you!
    nice to meet you!

#!/bin/env python
#coding:utf8

'''
@desc: 计算两个数的和
@param a: 加数a
@param b: 加数b
'''
def sum(a,b):
    return a + b
print sum(1,2)

相关文章