在循环不以python结束时重复一个函数

Question

嘿伙计们，我正在玩我的小项目，我遇到了关于如何重复一个函数的问题再次调用这个

代码如下：

 #this function is to check user and pass that was entered by the user using the inputs function

 def chk(u = str(a[0]), p = int(a[1])):
    while u not in sales_man.keys():
    call this function again

Answer 1

如果你想实现一个简单的登录，你可以使用经典的无限循环，如：

def check_user(user):
    return user in sales_man.keys()


while True:
    # [...] get username in input

    if check_user(username):
        # [...] ok, check password
    else:
        # [...] wrong user