获取浏览器窗口高度和宽度兼容IE

// 浏览器窗口的宽度，兼容 Internet Explorer 8, 7, 6, 5
function getClientWidth(){
    return window.innerWidth 
    || document.documentElement.clientWidth 
    || document.body.clientWidth;
}
// 浏览器窗口的高度，兼容 Internet Explorer 8, 7, 6, 5
function getClientHeight(){
    return window.innerHeight 
    || document.documentElement.clientHeight 
    || document.body.clientHeight; 
}
console.log(getClientWidth());
console.log(getClientHeight());