save project

diy2.py

@@ -11,6 +11,9 @@ while True:
             break
         if name!=username:
             print("用户名输入错误,请重新输入:")
+        if name!=username:
+            print("用户名错误,请重新输入")
+            print("温馨提示:你还有"+str(name)+"次机会")
             continue
         if password!=userpassword:
             print("密码输入错误,请重新输入:")