水平翻转：Picture1.PaintPicture Picture1.Picture,Picture1.ScaleWidth,-1 * Picture1.ScaleWidth,Picture1.ScaleHeight 垂直翻转：Picture1.PaintPicture Picture1.Picture,Picture1.ScaleHeight,-1 * Picture1.ScaleHeight 旋转180度：Picture1.PaintPicture Picture1.Picture,-1 * Picture1.ScaleHeight 缩 小：Picture1.PaintPicture Picture1,-Picture1.ScaleWidth,-Picture1.ScaleHeight 放 大：Picture1.PaintPicture Picture1,-2 * Picture1.ScaleWidth,-2 * Picture1.ScaleHeight
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