截屏，有半透明效果，选择区域可自由放缩和移动，可涂鸦，可另存为图片，双击则复制到剪贴板，有选择区域提示-Cut-off screen, there are semi-transparent effect, select the region are free to zoom and move, can graffiti can be saved as pictures, double-click the copy to the clipboard, you are prompted to cho