C# 矢量图形编程学习 1 全屏幕缩放:在选择位置向四周缩放(选择屏幕点被"锁定" 平移. 2 以毫米为计量单位 3 鼠标绘图操作方式可以选择 -Programming C# vector graphics to learn a full-screen zoom: in the choice of location to the surrounding zoom (select screen point to be " locked" translation.