Why, I add this in front of the output//printf (" "), is not 0?? Ever bosses, answer!!!!!!

CodePudding user response:

I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10581430.html
I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10768339.html