save project

diy2.py

+i=3
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
+    if i>0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
         password = input("请输入密码:")
         password = input("请输入密码:")
+        i-=1
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
@@ -11,4 +14,7 @@ while True:
             continue
             continue
         else:
         else:
             print('密码输入错误')
             print('密码输入错误')
+    else:
+        print('登录次数用完啦')
+        exit()
 print('欢迎来到编程世界')
 print('欢迎来到编程世界')
\ No newline at end of file