save project

diy2.py

@@ -3,9 +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:
+    if name == username and password == userpassword
+        print("登录成功!")
         break
-        print("登录成功!请重新输入")
         print("用户名和密码错误!")
     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 password != userpassword
+    print("密码输入错误")
+    if password != username
+    print("用户名输入错误")
+    
\ No newline at end of file