Python的string模块包含多种字符串操作方法，其中format方法用于格式化字符串输出。 1、 参数按默认顺序排列，无需指定位置。 2、 参数设定对应位置，位置即为索引。 3、 参数可在字符串中多次引用，并通过指定位置进行设置。 4、 可像字典一样通过参数名来引用参数。

大家好，欢迎来到 Crossin 的编程教室。字符串是Python中最常用的数据类型之一，看起来简单，用着顺手，但里面也藏着一些“坑”，很多新手（甚至有些老手）都会在这里不小心踩中。今天我们就来盘点一下Python字符串的10个经典易错点，帮助你避开这些常见错误。相信看完这篇文章，你对字符串的理解又能更进一步。1.

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