打不死的---蟑螂

摘要： 1，写代码，有如下列表，按照要求实现每一个功能 li=["alex","wusir","eric","rain","geon"] 1)计算列表的长度并输出 li=["alex","wusir","eric","rain","geon"] print(li.__len__()) 2)列表中追加元素’seven’,并输出添加后的列表 li=["alex","wusir&q 阅读全文

摘要： 结果：用户名>>> 密码>>> 阅读全文