用c#做的一个mandbert集。单击 getmandbert，得到一个mandbert集，并有一个矩形区域，可以任意选择区域进行放大,可以无限放大，还可以保存。-C# to do with a set mandbert. Click getmandbert, get a mandbert set, and there is a rectangular area, you can choose to enlarge the region can be infinitely magnified, also can be saved.