站主您好，这个是用c++中的qt写的一个简易画板的程序，很好用的，您检查一下，这是第五个了，您大人有大量就高抬贵手吧，让我过了吧-Main Hello, this is the c++ qt write a simple drawing board procedures, very good use of your check, this is the fifth, you adults have a lot of spare it, let me live!