jQuery圖片旋轉

<script> /* * 解析matrix矩陣，0°-360°，返回旋轉角度 * 當a=b||-a=b,0<=deg<=180 * 當-a+b=180,180<=deg<=270 * 當a+b=180,270<=deg<=360 * * 當0<=deg<=180,deg=d; * 當180<deg<=270,deg=180+c; * 當270<deg<=360,deg=360-(c||d); *

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