save project

diy2.py

@@ -8,9 +8,11 @@ while True:
         if name!=username:
             print("账户错误")
             i-=1
+            print("你还有",str(i),"次机会")
         elif password!=userpassword:
             print("密码错误")
             i-=1
+            print("你还有",str(i),"次机会")
         else:
             print("登录成功!")
             break