Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts 2021年10月5日 at 下午6:31 in reply to: 结果出现上下颠倒,怎么办?只加一个负号即可 #9461 Score: 0 赞平Participant Karma: 1 pt 厉害,在完成作业3的时候遇到这个问题。牛是倒过来的,为什么加负号就可以了,不懂? Author Posts Viewing 1 post (of 1 total)