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获取指定地址图片尺寸

2011-04-04 01:32:56| 分类：默认分类 | 标签： |举报 |字号大中小订阅

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最近做一个地图空间，需要获取一个给定地址图片的尺寸，我用的是jquery框架，获取方法有多种：
1： var img = document.createElement('img');
      img.src = filePath;
      var width = img.width;
      var width2 = $('img').width();
在Firefox   下width 可以获得，但width2为0，在IE下width和width2 都为0
于是换一种方式，两个浏览器都支持了：
var img =new Image();
img.src = filePath;
var width = img.width;
var width2 = $(img).width();
测试发现width在 FF和IE下都有值，但width2 在FF和IE下都为0
结论：使用 new Image() 方式。
var img = new Image();
img.src='http://www.sffsfs.com/images/sog.gif";
var width = img.width;

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