auto save

diy2.py

@@ -4,10 +4,13 @@ while True:
     name = input("请输入用户名:")
     if name!=username:
         print("用户名错误!请重新输入")
-        break
+        continue
     password = input("请输入密码:")
-    if password!=userpassword:
-        print("密码错误!请重新输入")
     if name == username and password == userpassword:
         print("登录成功!")
-        print("欢迎来到贝尔编程!")
\ No newline at end of file
+        break
+    if name!=username:
+        print("用户名错误!请重新输入")
+    if password!=userpassword:
+        print("密码错误!请重新输入")
+print("欢迎来到贝尔编程!")
\ No newline at end of file