Delphi拖动图片不出现滚动条，操作技巧：左键先单击下图片后，可以框选放大，左键双击还原至原始状态。不会出现滚动条。 -Delphi drag the picture scroll bar does not appear, operating skills: After the first click the left button under the picture, you can marquee zoom in, double-click the left button to res