save project

diy2.py

@@ -11,10 +11,11 @@ while True:
             break
         elif name!=username:   
             print("用户名错误!请重新输入")
+            print("还剩"+i+"次")
             continue
         elif password!=userpassword:
             print("把密码记牢了再来，浪费本大爷时间！")
     else:
-        exit
+        exit()
         
 print("欢迎来到贝尔编程!")