JavaScript中获取高度和宽度函数总结_javascript技巧

*
{
margin: 0 auto;
}
.father
{
width: 500px;
height: 750px;
border: 5px solid red;
float: left;
}
.son
{
width: 400px;
height: 300px;
border: 5px solid black;
margin: 20px;
}
.grandson
{
width: 150px;
height: 100px;
border: 5px solid blue;
margin: 20px;
overflow: auto;
}
.data
{
width: 600px;
height: 750px;
border: 5px solid red;
float: left;
margin-left: 15px;
}

window.onload = function()
{
/*获取元素对象*/
var father = document.getElementById('father');
var son = document.getElementById('son');
var grandson = document.getElementById('grandson');
var data = document.getElementById('data');
data.innerHTML = "

获取视窗大小(跟窗口大小有关)

";
data.innerHTML += "document.body可见区域宽: "+document.body.clientWidth+"
";
data.innerHTML += "document.body可见区域高: "+document.body.clientHeight+"
";
data.innerHTML += "window.innerWidth可见区域宽: "+window.innerWidth+"
";
data.innerHTML += "window.innerHeight可见区域高: "+window.innerHeight+"
";
data.innerHTML += "document.documentElement可见区域宽: "+document.documentElement.clientWidth+"
";
data.innerHTML += "document.documentElement可见区域高: "+document.documentElement.clientHeight+"
";
data.innerHTML += "

获取元素自身大小(跟是否有滚动条无关)

";
data.innerHTML += ".son自身宽度(offsetWidth属性，包括左右边框)："+son.offsetWidth+"
";
data.innerHTML += ".son自身高度(offsetHeight属性，包括上下边框)："+son.offsetHeight+"
";
data.innerHTML += ".son可视宽度(clientWidth属性，不包括左右边框)："+son.clientWidth+"
";
data.innerHTML += ".son可视高度(clientHeight属性，不包括上下边框)："+son.clientHeight+"
";
data.innerHTML += "

获取.grandson滚动大小和可视大小

";
data.innerHTML += ".grandson滚动宽度(scrollWidth属性)："+grandson.scrollWidth+"
";
data.innerHTML += ".grandson滚动高度(scrollHeight属性)："+grandson.scrollHeight+"
";
data.innerHTML += ".grandson可视宽度(clientWidth属性，不包括竖直滚动条和border)："+grandson.clientWidth+"
";
data.innerHTML += ".grandson可视高度(clientHeight属性，不包括水平滚动条和border)："+grandson.clientHeight+"
";
data.innerHTML += "

获取.grandson被卷去的大小(跟滚动条的位置有关)

";
data.innerHTML += ".grandson被卷去的高(scrollTop属性，竖直滚动条滑到最底端)："+grandson.scrollTop+"
";
data.innerHTML += ".grandson被卷去的左(scrollLeft属性，水平滚动条滑到最右端)："+grandson.scrollLeft+"
";
data.innerHTML += "

获取浏览器窗口位置(跟窗口大小有关)

";
/*
*IE、Chrome、Safari、Opera 都提供了支持 window.screenLeft 和 *window.screenTop，但是Firxfox不支持这个两个属性；
*Firxfox、Chrome、Safari、Opera 都提供了支持 window.screenX *和 window.screenY，但是 IE 不支持这个两个属性；
*/
var leftPos = (typeof window.screenLeft == 'number')?window.screenLeft:window.screenX;
var topPos = (typeof window.screenTop == 'number')?window.screenTop:window.screenY;
data.innerHTML += "body网页正文部分上(window.screenTop(Y))："+ topPos+"
";
data.innerHTML += "body网页正文部分左(window.screenLeft(X))："+ leftPos+"
";
data.innerHTML += "

获取屏幕分辨率

";
data.innerHTML += "屏幕分辨率的高(window.screen.height)："+ window.screen.height+"
";
data.innerHTML += "屏幕分辨率的宽(window.screen.width)："+ window.screen.width+"
";
data.innerHTML += "

获取屏幕可用的高宽

";
data.innerHTML += "屏幕分辨率的高(window.screen.availHeight)："+ window.screen.availHeight+"
";
data.innerHTML += "屏幕分辨率的宽(window.screen.availWidth)："+ window.screen.availWidth+"
";
data.innerHTML += "

获取.father的边框大小

";
data.innerHTML += ".father上边框(clientTop)："+ father.clientTop+"
";
data.innerHTML += ".father左边框(clientLeft)："+ father.clientLeft+"
";
data.innerHTML += "

获取.son到父元素边界的距离(即对应margin+父元素对应的border)

";
data.innerHTML += ".son到父元素上边界(offsetTop)："+ son.offsetTop+"
";
data.innerHTML += ".son到父元素左边界(offsetLeft)："+ son.offsetLeft+"
";
}