1.py

i=3
a = "曹哲源"
b = "czy20080901"
while True:
    if i>0:
        n = input("请输入用户名：")
        s = input("请输入密码：")
        i -=1
        if n  == a and s == b:
            print("登录成功")
            break
        if n != a:
            print("用户名错误,请重新输入！")
            print("你还有"+str()+)
            continue
        if s!= b:
            print("密码错误")
    else:
        print("已锁定")
        exit()
print("w")