摘要：
name = ' aleX' print(name.strip()) print(name.startswith('al')) print(name.endswith('X')) print(name.replace('l','p')) print(name.split('l')) print(na 阅读全文
摘要：
name = input('用户名为：') code = input('密码为') if name == 'seven' and code == '123': print('登录成功') else: print('登录失败') i = 0 while i < 3: name = input('用户名 阅读全文