典型代码1：data_list = [1, 2, 3, 4, 0, -1, -2, 6, 8, -9]data_list_copy = [item for item in data_list]print(data_list)print(data_list_copy)输出1：[1, 2, 3, 4, 0, -1, -2, 6, 8, -9][1, 2, 3, 4, 0, -1,

典型代码1：data_list = [6, 9, 1, 3, 0, 10, 100, -100]data_list.sort()print(data_list)输出1:[-100, 0, 1, 3, 6, 9, 10, 100]典型代码2:data_list = [6, 9, 1, 3, 0, 10, 100, -100]data_list_copy = sorted(d

典型代码：data_list = ['a', 'b', 'c', 'd', 'e', 'f']separator = '\t'data_joined = separator.join(data_list)print(data_joined)其输出为：a b c d e f应用场景在实现很多业务需求的时候，需要将列表中的每一项按照某种分隔符拼接成一个串，以完成某种序

典型代码1：from collections import defaultdictif __name__ == '__main__': data = defaultdict(int) data[0] += 1 print(data)输出1:defaultdict(, {0: 1})典型代码2:if __name__ == '__main__': data = {'

典型代码:def mygen(): i = 0 while i < 100: yield i i += 1if __name__ == '__main__': gen = mygen() for item in gen: print(item)什么是生成器：生成器是一个包含yield表达式的函数，只要一个函...