{"id":532,"date":"2010-10-15T17:46:47","date_gmt":"2010-10-15T17:46:47","guid":{"rendered":""},"modified":"2010-10-15T17:46:47","modified_gmt":"2010-10-15T17:46:47","slug":"532","status":"publish","type":"post","link":"https:\/\/www.poloo.org\/?p=532","title":{"rendered":"\u9ad8\u6027\u80fdWEB\u5f00\u53d1 – \u56fe\u7247\u7bc7"},"content":{"rendered":"

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1. \u4f7f\u7528PNG8\u4ee3\u66ffGIF(\u975e\u52a8\u753b\u56fe\u7247)\uff0c\u56e0\u4e3aPNG8\u5728\u6548\u679c\u4e00\u6837\u7684\u60c5\u51b5\uff0c\u56fe\u7247\u5927\u5c0f\u6bd4GIF\u8981\u5c0f\u3002<\/p>\n

2. \u7528fireworks\u5904\u7406PNG\u56fe\u7247\uff0c\u5728\u6211\u4eec\u4ea7\u54c1\u4e2d\u5f88\u591aPNG\u56fe\u7247\u662f\u7f8e\u5de5\u76f4\u63a5\u7528photoshop\u5bfc\u51fa\u7684\uff0c
    \u540e\u6765\u8ba9\u7f8e\u5de5\u7528fireworks\u5904\u7406PNG(\u5927\u6982\u7684\u65b9\u5f0f\u662f\u9009\u62e9\u4fdd\u5b58\u4e3aPNG8,\u5220\u9664\u80cc\u666f\u8272)\u3002
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3. \u4f7f\u7528Smush.it(http:\/\/www.smushit.com\/ysmush.it\/<\/a>)\u538b\u7f29\u56fe\u7247\uff0cSmush.it\u662fYUI\u56e2\u961f\u505a1\u4e2a\u5728\u7ebf\u538b\u7f29\u56fe\u7247\u7684\u7f51\u7ad9\uff0c
   \u8be5\u7f51\u7ad9\u5728\u4e0d\u5f71\u54cd\u539f\u56fe\u7247\u7684\u8d28\u91cf\u4e0b\u53bb\u6389\u56fe\u7247\u4e2d\u4e00\u4e9b\u5143\u6570\u636e\uff0c\u6240\u4ee5\u53ef\u4ee5\u653e\u5fc3\u4f7f\u7528\u8be5\u7f51\u7ad9\u8fdb\u884c\u538b\u7f29\uff0c
   \u4f46\u8fd9\u4e2a\u538b\u7f29\u6bd4\u4f8b\u4e5f\u662f\u6bd4\u8f83\u6709\u9650\u7684\u3002<\/p>\n

\u4e8c\u3001\u5408\u5e76\u56fe\u7247\u548c\u62c6\u5206\u56fe\u7247
1. CSS Sprites\u5408\u5e76\u56fe\u7247\u4ee5\u51cf\u5c11\u8bf7\u6c42\u6570\u6765\u63d0\u9ad8\u6027\u80fd\u5927\u5bb6\u90fd\u77e5\u9053\u3002\u4f46\u4e0d\u8981\u628a\u56fe\u7247\u5408\u5e76\u592a\u591a\uff0c\u592a\u591a\u592a\u5927\u4e86\uff0c
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2. \u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u628a1\u4e2a\u5927\u56fe\u7247\u62c6\u5206\u6210\u591a\u4e2a\u5c0f\u56fe\u7247\uff0c\u6bd4\u5982\u4ea7\u54c1\u9996\u9875\u56fe\u7247\u6bd4\u8f83\u5c11\uff0c\u5c311\u4e2a\u5f88\u5927\u7684banner\u56fe\u7247\uff0c
\u56e0\u6d4f\u89c8\u5668\u90fd\u53ef\u4ee5\u5e76\u53d1\u4e0b\u8f7d\u56fe\u7247\uff0c\u6240\u4ee5\u5982\u679c\u4e0d\u62c6\u5206\uff0c\u53ea\u4f7f\u75281\u4e2a\u5927\u56fe\u7247\u7684\u8bdd\uff0c\u4e0b\u8f7d\u901f\u5ea6\u53cd\u800c\u4f1a\u6bd4\u8f83\u6162<\/p>\n

\u4e09\u3001\u900f\u660e\u56fe\u7247\u5904\u7406
IE6\u4e0d\u80fd\u663e\u793a\u900f\u660e\u7684PNG\u56fe\u7247\uff0c\u662f\u5f88\u591a\u5f00\u53d1\u4eba\u5458\u7279\u522b\u5934\u75bc\u7684\u4e8b\uff0c\u5206\u522b\u4ecb\u7ecd\u4e0b\u51e0\u79cd\u65b9\u5f0f\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n

1.\u4f7f\u7528AlphaImageLoader\uff0cIE6\u652f\u6301filter,\u4f7f\u7528\u4e0b\u9762\u7684CSS\u4ee3\u7801\uff0c\u53ef\u4ee5\u8ba9IE6\u652f\u6301PNG

  #some-element {
    background: url(image.png);
    _background: none;
    _filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='image.png', sizingMethod='crop');
  }
<\/code>
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\u7f3a\u70b9\uff1a\u6027\u80fd\u635f\u8017\u5f88\u5927,AlphaImageLoader\u4f1a\u82b1\u8d39\u5f88\u591a\u8d44\u6e90\u53bb\u5904\u7406\u900f\u660e\u56fe\u7247\uff0c\u4f7f\u7528AlphaImageLoader,IE\u4f7f\u7528\u5185\u5b58\u4f1a\u8fc5\u901f\u4e0a\u5347\u3002
\u800c\u4e14AlphaImageLoader\u6240\u6709\u5904\u7406\u90fd\u5728\u540c1\u4e2a\u7ebf\u7a0b\u4e2d\u540c\u6b65\u8fdb\u884c\uff0c\u6240\u4ee5\u5f53AlphaImageLoader\u591a\u7684\u65f6\u5019\uff0c\u4f1a\u963b\u585eUI\u7684\u6e32\u67d3\u3002
\u4f7f\u7528_filter\uff0cIE7\u4e5f\u53ef\u4ee5\u8bc6\u522b\uff0c\u5176\u5b9eIE7\u662f\u53ef\u4ee5\u8bc6\u522bPNG\u900f\u660e\u56fe\u7247\u7684\uff0c\u5982\u679c\u5728IE7\u4e0b\u4f7f\u7528\u4e0a\u9762\u4ee3\u7801\uff0cIE7\u4e0d\u4f1a\u76f4\u63a5\u4f7f\u7528\u56fe\u7247\uff0c\u800c\u662f\u4f7f\u7528AlphaImageLoader\u3002
\u6ce8\uff1a\u4e2a\u4eba\u5efa\u8bae\u5c3d\u91cf\u907f\u514d\u4f7f\u7528AlphaImageLoader<\/p>\n

2. JS\u5904\u7406
\u4f7f\u7528DD_belatedPNG(http:\/\/www.dillerdesign.com\/experiment\/DD_belatedPNG\/<\/a>),\u53ef\u4ee5\u5f88\u7b80\u5355\u7684\u5bf9\u754c\u9762\u4e0a\u6240\u6709\u7684\u900f\u660e\u56fe\u7247\u8fdb\u884c\u540c\u4e00\u5904\u7406\u3002
\u4f18\u70b9\uff1a\u4f7f\u7528\u7b80\u5355(\u6bd4AlphaImageLoader\u8fd8\u7b80\u5355)
\u7f3a\u70b9\uff1a\u5f53\u9875\u9762\u4e0a\u9700\u8981\u5904\u7406\u7684\u56fe\u7247\u6bd4\u8f83\u591a\u7684\u65f6\u5019\uff0c\u901f\u5ea6\u4e5f\u6bd4\u8f83\u6162\uff0c\u800c\u4e14\u4e0d\u80fd\u52a8\u6001\u6539\u53d8\u56fe\u7247\u3002<\/p>\n

3. VML
IE6\u652f\u6301VML\uff0cVML\u53ef\u4ee5\u4f7f\u7528\u900f\u660e\u56fe\u7247\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a
\u4fee\u6539html\u4ee3\u7801\u5934\u90e8

html xmlns=\"http:\/\/www.w3.org\/1999\/xhtml<\/a>\" xmlns:v>
           head>
       style type=\"text\/css\">
            v:*{behavior:url(#default#VML);}
           span style=\"color: rgb(128, 0, 0);\">style>
          span style=\"color: rgb(128, 0, 0);\">head>  
          body>
             v:image src=\"image.png\" \/>
          span style=\"color: rgb(128, 0, 0);\">body>
        span style=\"color: rgb(128, 0, 0);\">html>
<\/code>
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\u56db\u3001\u591a\u57df\u540d\u4e0b\u8f7d\u56fe\u7247
\u56e0\u6bcf\u4e2a\u6d4f\u89c8\u5668\u5bf9\u540c1\u4e2a\u57df\u540d\u540c\u65f6\u53ea\u80fd\u53d1\u9001\u56fa\u5b9a\u7684\u8bf7\u6c42\uff0c\u6bd4\u5982IE6\u597d\u50cf\u662f2\u4e2a\uff0c\u6240\u4ee5\u53ef\u4ee5\u5bf9\u56fe\u7247\u8d44\u6e90\u5f00\u901a\u591a\u4e2a\u57df\u540d\u8fdb\u884c\u8bf7\u6c42\uff0c
\u6bd4\u5982img1.abc.com,img2.abc.com\u3002\u4f46\u57df\u540d\u4e0d\u8981\u5f00\u542f\u592a\u591a\uff0c\u56e0\u4e3a\u89e3\u6790\u57df\u540d\u548c\u6253\u5f00\u65b0\u7684\u8fde\u63a5\u90fd\u9700\u8981\u6d88\u8017\u65f6\u95f4\uff0c\u57df\u540d\u591a\u4e86\uff0c\u8bf4\u4e0d\u5b9a\u53cd\u800c\u4f1a\u66f4\u6162\u3002\u4e00\u822c2-4\u4e2a\u57df\u540d\u5c31\u591f\u4e86\u3002<\/p>\n

\u4e94\u3001IE6\u4e0b\u7f13\u5b58\u80cc\u666f\u56fe\u7247
IE6\u80cc\u666f\u56fe\u7247\u7f13\u5b58\u662f\u4e2a\u9ebb\u70e6\u4e8b\uff0c\u5f88\u591a\u4eba\u77e5\u9053\u4f7f\u7528\u4e0b\u9762\u7684JS\u6765\u8ba9IE6\u7f13\u5b58\u80cc\u666f\u56fe\u7247

try{
     document.execCommand(\"BackgroundImageCache\", false, true);
}catch(e){}
<\/code>
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\u5728\u9875\u9762\u4e0a\u76f4\u63a5\u4f7f\u75281\u4e2aDIV\u5143\u7d20\u6765\u52a0\u8f7d\u8be5\u56fe\u7247\uff0c\u8fd9\u6837\u52a0\u8f7d\u56fe\u7247\u5c31\u80fd\u771f\u6b63\u88ab\u7f13\u5b58\uff0c\u9f20\u6807\u79fb\u52a8\u4e5f\u4e0d\u4f1a\u53d1\u9001\u8bf7\u6c42\u4e86\u3002<\/p>\n

        
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window.onload=function(){
   var img = new Image();
   img.src = \"images\/image.png\";
   img = null;
};
<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

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