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php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>imagecolorexact</H1
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>    (PHP 3, PHP 4, PHP 5)</P
>imagecolorexact&nbsp;--&nbsp;取得指定颜色的索引值</DIV
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>int <B
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>imagecolorexact</B
> ( resource image, int red, int green, int blue )<BR
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>&#13;   返回图像调色板中指定颜色的索引值。
  </P
><P
>&#13;   如果颜色不在图像的调色板中,返回 -1。
  </P
><P
>&#13;   如果从文件创建了图像,只有图像中使用了的颜色会被辨析。仅出现在调色板中的颜色不会被辨析。
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>&#13;   参见 <A
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>imagecolorclosest()</B
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