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永遠固定大小的圖片
Author:
羅驥韡 (Pegasus Roe)
這個圖片不會因為旋轉、視窗放大或縮小而改變它的大小,因此相對於螢幕而言,它的大小是固定的,但相對於座標系統而言,它的四個角落的座標卻是會改變的。
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