save project

diy2.py

-username = "python"
-userpassword = "123456"
+username = 'python'
+userpassword = '123456'
 while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
         print("登录成功!")
-    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
+        break
+    if name!=username:
+        print("用户名错误,请重行输入!")
+        continue
+    if password!=userpassword:
+        print("密码输入错误,请重新输入!")
+print("欢应来到贝尔编程!")
+