diy2.py
534 Bytes
username = "python"
userpassword = "123456"
i=3
while True:
if i>0:
a = input("请输入用户名:")
b = input("请输入密码:")
i-=1
if a == username and b == userpassword:
break
print("登录成功!")
if a!=username:
print("用户名错误!请重新输入")
continue
if b!=userpassword:
print("密码错误!请重新输入")
else:
print("登录锁定")
exit()
print("欢迎来到贝尔编程!")