JS获取对象的某个CSS属性值的问题_html/css_WEB-ITnose
function getStyle(obj,attr){ if(obj.currentStyle){ return obj.currentStyle[attr]; }else{ return getComputedStyle(obj,false)[attr]; } }
该方法很强大,兼容所有浏览器,可获取对象的某个特定的CSS属性;
但是后来使用该方法时,发现在火狐和IE上有个共同的BUG,就是获取border的值时,他们都返回空了;
因为浏览器对border的渲染有差异,在火狐上border是分四个方向来渲染的,
所以获取border的值时,要分开获取,
这样:getStyle(obj,'borderLeftWidth') 来取得边框的值。
其实这个方法本身是没有任何问题的,只是在使用时,只是在使用时对浏览器本身的一些差异,还是要注意;
是否其他属性的值也有这种差异,还要在实际使用时去发现。
另外,该方法在获取行内样式时是不通用的,还是要用 obj.style[attr]

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