window.getComputed浏览器兼容

function getComputedStyles(element){     if(window.getComputedStyle){             return window.getComputedStyle(element);      }else{       return element.currentStyle;      }}

//实现getStyle函数

function getStyle(element,cssPropertyName){<span style="white-space:pre"></span>if (window.getComputedStyle) {<span style="white-space:pre"></span>return window.getComputedStyle(element);<span style="white-space:pre"></span>} <span style="white-space:pre"></span>else<span style="white-space:pre"></span>{<span style="white-space:pre"></span>return element.current.getStyle[cssPropertyName];<span style="white-space:pre"></span>};    }