a = ‘Hello World!‘ a_list = list(a)
//[‘H‘, ‘e‘, ‘l‘, ‘l‘, ‘o‘, ‘ ‘, ‘W‘, ‘o‘, ‘r‘, ‘l‘, ‘d‘, ‘!‘]
其中a为字符串，a_list为List
a_list = [‘H‘, ‘e‘, ‘l‘, ‘l‘, ‘o‘, ‘ ‘, ‘W‘, ‘o‘, ‘r‘, ‘l‘, ‘d‘, ‘!‘] a = ‘‘.join(a_list) //‘Hello Horld!‘
其中a_list为List，a为字符串
此外，引号中是字符之间的分割符，如‘,’，‘\t‘等等
原文：https://www.cnblogs.com/EdenChanIy/p/9463104.html