var winWidth = 0
var winHeight = 0
function findDimensions() //函数:获取尺寸
{
//获取窗口宽度
if (window.innerWidth)
winWidth = window.innerWidth
else if ((document.body) &&(document.body.clientWidth))
winWidth = document.body.clientWidth
//获取窗口高度
if (window.innerHeight)
winHeight = window.innerHeight
else if ((document.body) &&(document.body.clientHeight))
winHeight = document.body.clientHeight
//通过深入Document内部对body进行检测,获取窗口大小
if (document.documentElement &&document.documentElement.clientHeight &&document.documentElement.clientWidth)
{
winHeight = document.documentElement.clientHeight
winWidth = document.documentElement.clientWidth
}
//这块
//document.body.style.height = winHeight + "px"
//document.body.style.width = winWidth + "px"
document.getElementById("a1111").style.height = winHeight + "px"
document.getElementById("a1111").style.width = winWidth + "px"
}
findDimensions()
//调用函数,获取数值
window.onresize=findDimensions
</script>