我要假设这是WinForms，它看起来肯定是这样，但我不确定.以下是您要实现的代码:
http://www.bobpowell.net/zoompicbox.htm [

Im going to assume this is WinForms, it sure looks like that, but im not certain. Here is code for what you are trying to achieve:
http://www.bobpowell.net/zoompicbox.htm[^]