auto save

diy1.py

-username="python"
-userpassword="123"
+username = "python"
+userpassword = "123"
 while True:
 while True:
-    name=input("请输名")
-    password=input("请输密码")
-    if name==username and password==userpassword:
-        print("登录成功")
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        print("登陆成功!")
         break
         break
-    print("请重输")
-print("欢迎来到贝尔编程")
+    if name!=username:
+        print("用户名错误")
\ No newline at end of file
+        continue
+    if password!=userpassword:
+        print("用户密码错误")
+print("欢迎来到贝尔编程!")
\ No newline at end of file