图片裁剪网说明： [1] 鼠标拖动裁剪框可移动裁剪区域的位置,此操作适用于矩形裁剪，圆形裁剪，圆角矩形裁剪，圆弧裁剪。 [2] 鼠标拉拽裁剪框边框可调整裁剪区域的大小,此操作适用于矩形裁剪，圆形裁剪，圆角矩形裁剪，圆弧裁剪。-[1] The mouse drag the crop frame to move the position of the cropping area. This operation is suitable for rectangle cutting, circular cutting, rounded rectangle cutting and circular cutting. [2] The mouse can be used to adjust the size of the crop area by dragging the border of the crop frame. This operation is suitable for rectangle, circle, rectangle and arc.