save project

diy2.py

@@ -3,7 +3,13 @@ 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
+    if name!=username:
+        print('用户名错误，请重新输入!')
+        continue
+    elif password!=userpassword:
+        print('密码错误，请重新输入！')
+        continue
+    else:
+        break
+print("登录成功!")
+