#用户登录3次机会
i = 0
while i < 3 :
username = input("请输入用户名：")
password = int(input("请输入密码："))
if username == 'cxr' and password ==123:
print('Sucessed')
else:
print('failed,plz try again')
i += 1
print('out')
标签：username,登录,print,第二天,三次,input,password From： https://www.cnblogs.com/antonrr/p/17567727.html