摘要： 如有不足之处，请评论批评指正# 1. 列表的常用操作（增，删，改，查）list1 = [0, 1, 2, 3, 4, 5 ]list2 = ["a", "b", "c", "d"]list3 = ["a", "b", "c"]list1.append(100) ... 阅读全文

摘要： 初学python，尚有不足之处请批评指正# 字符串的常用操作# 1. 大小写转换str1 = "hellopythonhelloworld"str2 = "hello python 999, hello world"str3 = "HELLOpython,HELLO... 阅读全文