python string 之 format, join, split】的更多相关文章

功能太强大. 经常看到很多简洁, 高级的用法. 但是基本思路是{}代替了以前的%. In [1]: '{0},{1}'.format('kzc',18) Out[1]: 'kzc,18' In [2]: '{},{}'.format('kzc',18) Out[2]: 'kzc,18' In [3]: '{1},{0},{1}'.format('kzc',18) Out[3]: '18,kzc,18' '{}{}' 花括号中可以有数字也可以没有, 如上. join连接字符串,split拆分字符串…
python 在 2.6之后支持了string的format功能, 很强大, 应该成为使用习惯. http://blog.csdn.net/handsomekang/article/details/9183303 http://blog.xiayf.cn/2013/01/26/python-string-format/…
本文记录python,join和split函数的用法. 参考 http://blog.csdn.net/doiido/article/details/43538833 http://blog.csdn.net/acdreamers/article/details/8920144 join join() 方法用于将序列中的元素以指定的字符连接生成一个新的字符串. #!/usr/bin/env python list = ['1','2','3','4'] str = '--' print str.…
官网文档地址:https://docs.python.org/3/library/stdtypes.html#string-methods 官网 公号:软测小生ruancexiaosheng 文档里的所有String的方法都在下面,基于 Python 3.X 版本,截止日期是2017/10/12日,之后的可能会有更新.花了一天的时间学习并记录了一下 4.7.1. String Methods str.capitalize() --> String 返回字符串,其首字母大写,其余部分小写 1>&…
String模块中的常量 >>> import string >>> string.digits ' >>> string.letters 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' >>> string.lowercase 'abcdefghijklmnopqrstuvwxyz' >>> string.printable '0123456789abc…
string比较连接 >>> s1="python string" >>> len(s) 13 >>> s2=" python string2 " >>> s=s1+s2 >>> s 'python string python string2 ' >>> >>> cmp(s1,s2) 1 string 截取 >>> s1[0…
JUNE 28TH, 2014Tweet This article describes how Python string interning works in CPython 2.7.7. A few days ago, I had to explain to a colleague what the built-in function intern does. I gave him the following example: >>> s1 = 'foo!' >>>…
http://www.laurentluce.com/posts/python-string-objects-implementation/ Python string objects implementation June 19, 2011 This article describes how string objects are managed by Python internally and how string search is done. PyStringObject structu…
python中string自带的split不支持多个分隔符同时切分,用正则 import re line='hello,world' lineLists = re.split('[,,..??]',line.strip())…
原文链接:The internals of Python string interning 由于本人能力有限,如有翻译出错的,望指明. 这篇文章是讲Python string interning是如何工作的,代码基于CPython2.7.7这个版本. 前一段时间,我向同事解释了python的buil-in函数 intern背后到底做了什么.我给他看了下面这个例子: >>> s1 = 'foo!' >>> s2 = 'foo!' >>> s1 is s2…