auto save

diy2.py

+i=3
 username = "python"
 userpassword = "123456"
 while True:
+    if i>0
         name = input("请输入用户名:")
         password = input("请输入密码:")
         if name == username and password == userpassword:
@@ -12,4 +14,5 @@ while True:
         if password != userpassword:
             print("密码输入有误，请重新输入")
     print("用户名和密码错误!请重新输入")
+        
 print("欢迎来到贝尔编程!")
\ No newline at end of file