模拟ATM

定义账号列表信息

userlist = [
{"name": "zhangsan", "password": 562390, "money": 500},
{"name": "lisi", "password": 123456, "money": 1000},
{"name": "wangwu", "password": 897456, "money": 2000}
]
#验证用户名密码是否匹配
def User_Login(username, pwd):
for i in range(len(userlist)):
if userlist[i]['name'] == username and userlist[i]['password'] == pwd:
return 1

while True:
print("欢迎进入中国银行")
print("1. 登陆", "2. 退出","3. 余额","4. 存款","5. 取款")
key = input("请输入选择:")

根据key进行判断

if key == "1":
    username = input("请输入账户:")
    pwd = input("请输入密码:")
    if UserLogin(username, int(pwd))==1:
        print('登陆成功')

    else:
        print ("登陆失败")
if key == "2":
    break
input("按回车键继续:")

    #已经定义了用户列表，存款及取款的操作能够和输入的用户名相对应，存款及取款能够影响到余额，逻辑不需严谨，只需简单实现出来即可。我是初学者 小白

userlist = [

{"name": "zhangsan", "password": 562390, "money": 500},

{"name": "lisi", "password": 123456, "money": 1000},

{"name": "wangwu", "password": 897456, "money": 2000}

]

item = {"a":"存款","b":"取款","c":"余额","d":"注销"}

#验证用户名密码是否匹配

def UserLogin(username, pwd):

for user in userlist:

if user['name'] == username and user['password'] == pwd:
return 1

while True:

print("欢迎进入中国银行")

print("1. 登陆 "+"2. 退出")

key = input("请输入选择:")

if key == "1":

username = input("请输入账户:")

pwd = input("请输入密码:")

if UserLogin(username, int(pwd))==1:

print('登陆成功')

while True:

for key in sorted(item.keys()):

print(key+":"+item[key])

key = input("请输入选择:")

if key == "a":

cash = input("请输入要存款的数额:")

for user in userlist:

if user["name"] == username:

user["money"] = user["money"] + int(cash)

input("存款成功，回车请继续")

break

elif (key == "b"):

while True:

exitflg = False

cash = input("请输入要取款的数额:")

for user in userlist:

if user["name"] == username:

if user["money"] < int(cash):

print("存款额度小于取款额度，请重新输入")
continue

user["money"] = user["money"] - int(cash)

input("取款成功，回车请继续")

exitflg = True

break

if exitflg:

break

elif (key == "c"):

for user in userlist:

if user["name"] == username:

print("当前余额:"+str(user["money"]))

break

elif (key == "d"):

break;

else:

print("输入错误，请重新输入")

else:

print ("登陆失败")

if key == "2":

break

input("按回车键继续:")

https://blog.csdn.net/ccccc49813645075/article/details/80547283