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如何用GD库把png格式的图片转为jpg的

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WBOYOriginal
2016-06-13 12:33:591445browse

怎么用GD库把png格式的图片转为jpg的?
基本需求是:把png的图片体积变小,然后保持一定的清晰度,尺寸不变。怎么实现?

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