auto save

diy2.py

 username = "python"
 userpassword = "123456"
 while True:
+    if i>0:
+        pass
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
@@ -12,3 +14,4 @@ while True:
     if password !=  userpassword:
         print("密码错误请重新输入")
 print("欢迎来到贝尔编程!")
+exit()