摘要： FalseTrueFalseTrueTrueTrueTrueTrue1+2+5AlexAlexAlex{102: 49, 103: 50, 104: 51, 105: 52, 106: 53}{53: 49, 54: 50, 35: 52, 57: 53}alex345aYEex lYY7['1', 阅读全文

摘要： product_list = [ ('IPhone',5900), ('Mac pro',9800), ('Bike',800), ('Watch',16000), ('Coffee',35), ('Tea',88)]shopping_list = []sum1 = 0print (product_ 阅读全文

摘要： import copynames = ["88xiaoming","liuhai","杨东","liuhai","xiaohuang","liuhai"]names2 = copy.deepcopy(names)print (names)print(names2)names[1] = "叶文"nam 阅读全文

摘要： #1:三元运算（满足条件就返回值,不简洁的代码）：a= 1b= 3c= 5if a > b : d = aelse: d = cprint (d)#2:三元运算（满足条件就返回值，简洁的代码）：a= "1"b="3"c="5"d=a if a > b else cprint (d)#3：解码与编码： 阅读全文

摘要： #1测试判断用户与密码是否正确：import getpassusername = "llz"password = "123455"_username = input("请输入用户名:")#assword = getpass.getpass("请输入密码:")_password = input("请输 阅读全文