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<p>bytesPerPixel : &#x6BCF;&#x4E2A;&#x50CF;&#x7D20;&#x6240;&#x5360;&#x7684;&#x5B57;&#x8282;&#x6570;&#x3002;</p>
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<p>&#x6240;&#x4EE5;&#x4E00;&#x822C;&#x56FE;&#x7247;&#x7684;&#x8BA1;&#x7B97;&#x516C;&#x5F0F;&#x662F; wxhx4 </p>


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