Ringkasan mendapatkan fungsi ketinggian dan lebar dalam petua JavaScript_javascript

WBOY
Lepaskan: 2016-05-16 16:34:51
asal
1366 orang telah melayarinya

kod html:

Salin kod Kod adalah seperti berikut:



& Lt; h3 & gt;             

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

Selamat Hari Kebangsaan


                                                                                                                                                                                                                                                                                                                                 


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       





css:





Salin kod

Kod adalah seperti berikut:

*

{           jidar: 0 auto; } .ayah {             lebar: 500px;            tinggi: 750px;
           jidar: 5px merah pepejal;
         terapung: kiri;
}
.nak
{
           lebar: 400px;
           tinggi: 300px;
           jidar: 5px hitam pejal;
​​Margin: 20px;
}
.cucu
{
           lebar: 150px;
           tinggi: 100px;
          jidar: 5px biru pejal;
​​Margin: 20px;
           limpahan: auto;
}
.data
{
           lebar: 600px;
           tinggi: 750px;
           jidar: 5px merah pepejal;
         terapung: kiri;
          jidar-kiri: 15px;
}




js:





Salin kod

Kod adalah seperti berikut:


window.onload = function()
{
​​​​/*Dapatkan objek elemen*/
          var bapa = document.getElementById('bapa');
          var son = document.getElementById('son');
        var cucu = document.getElementById('cucu');
           var data = document.getElementById('data');
​​​​​ data.innerHTML = "

Dapatkan saiz tetingkap (berkaitan dengan saiz tetingkap)

";
              data.innerHTML = "Lebar kawasan boleh dilihat dokumen.badan: " document.body.clientWidth "
";
             data.innerHTML = "Document.body visible area height: " document.body.clientHeight "
";
              data.innerHTML = "window.innerWidth boleh dilihat lebar kawasan: " window.innerWidth "
";
              data.innerHTML = "window.innerHeight boleh dilihat ketinggian kawasan: " window.innerHeight "
";
             data.innerHTML = "document.documentElement kelihatan lebar kawasan: " document.documentElement.clientWidth "
";
              data.innerHTML = "document.documentElement boleh dilihat ketinggian kawasan: " document.documentElement.clientHeight "
";
​​​​​ data.innerHTML = "

Dapatkan saiz elemen itu sendiri (tidak kira sama ada terdapat bar skrol)

";
                data.innerHTML = ".lebar anak sendiri (atribut OffsetWidth, termasuk sempadan kiri dan kanan):" son.offsetWidth "
";
                data.innerHTML = ".ketinggian anak sendiri (atribut offsetHeight, termasuk sempadan atas dan bawah):" son.offsetHeight "
";
               data.innerHTML = ".lebar visual anak (atribut clientWidth, tidak termasuk sempadan kiri dan kanan):" son.clientWidth "
";
               data.innerHTML = ".son height visual (atribut clientHeight, tidak termasuk sempadan atas dan bawah):" son.clientHeight "
";
              data.innerHTML = "

Dapatkan.saiz tatal cucu dan saiz visual

";
​​​​​ data.innerHTML = ".lebar tatal cucu (atribut scrollWidth):" grandson.scrollWidth "
";
​​​​​ data.innerHTML = ".tinggi tatal cucu (atribut scrollHeight):" grandson.scrollHeight "
";
                data.innerHTML = ".lebar visual cucu (atribut clientWidth, tidak termasuk bar skrol menegak dan sempadan):" grandson.clientWidth "
";
               data.innerHTML = ".ketinggian visual cucu (atribut clientHeight, tidak termasuk bar skrol mendatar dan sempadan):" grandson.clientHeight "
";
             data.innerHTML = "

Dapatkan saiz .cucu yang digulung (berkaitan dengan kedudukan bar skrol)

";
                 data.innerHTML = ".Ketinggian cucu ditatal (atribut tatal atas, bar tatal menegak meluncur ke bawah):" grandson.scrollTop "
";
data.innerHTML = ".cucu ditatal ke kiri (atribut skrol Kiri, bar skrol mendatar meluncur ke hujung kanan):" grandson.scrollLeft "
";
             data.innerHTML = "

Dapatkan kedudukan tetingkap penyemak imbas (berkaitan dengan saiz tetingkap)

";
          /*
*IE, Chrome, Safari dan Opera semuanya menyediakan sokongan untuk window.screenLeft dan *window.screenTop, tetapi Firxfox tidak menyokong kedua-dua atribut ini; *Firxfox, Chrome, Safari dan Opera semuanya menyediakan sokongan untuk window.screenX *dan window.screenY, tetapi IE tidak menyokong kedua-dua atribut ini; */
        var leftPos = (typeof window.screenLeft == 'number')?window.screenLeft:window.screenX;
        var topPos = (typeof window.screenTop == 'number')?window.screenTop:window.screenY;
              data.innerHTML = "Pada bahagian teks halaman badan (window.screenTop(Y)):" topPos "
";
               data.innerHTML = "Sebelah kiri bahagian teks kandungan (window.screenLeft(X)):" leftPos "
";
​​​​​ data.innerHTML = "

Dapatkan peleraian skrin

";
​​​​​ data.innerHTML = "Ketinggian resolusi skrin (window.screen.height):" window.screen.height "
";
​​​​​ data.innerHTML = "Lebar peleraian skrin (window.screen.width):" window.screen.width "
";
            data.innerHTML = "

Dapatkan ketinggian dan lebar skrin yang tersedia

";
             data.innerHTML = "Ketinggian resolusi skrin (window.screen.availHeight):" window.screen.availHeight "
";
             data.innerHTML = "Lebar peleraian skrin (window.screen.availWidth):" window.screen.availWidth "
";
             data.innerHTML = "

Dapatkan saiz sempadan .bapa

";
              data.innerHTML = ".bapa sempadan atas (clientTop):" father.clientTop "
";
              data.innerHTML = ".bapa sempadan kiri (klienKiri):", bapa.klienKiri "
";
​​​​​ data.innerHTML = "

Dapatkan jarak dari .son ke sempadan unsur induk (iaitu sempadan yang sepadan dengan unsur induk jidar)

";
             data.innerHTML = ".anak ke sempadan atas elemen induk (offsetTop):" son.offsetTop "
";
              data.innerHTML = ".son ke tepi kiri unsur induk (offsetLeft):" son.offsetLeft "
";
}

ps: Terdapat perbezaan dalam cara pelayar menghuraikan kotak, jadi akan terdapat perbezaan kecil dalam data yang diperoleh di atas. Dilampirkan adalah gambar.

Kod penuh:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html> 
<head> 
<meta charset="utf-8" /> 
<title>test</title> 
<style type="text/css">
	*
	{
		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;
	}
</style>
<script type="text/javascript">
	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 = "<h3>获取视窗大小(跟窗口大小有关)</h3>";
		data.innerHTML += "document.body可见区域宽: "+document.body.clientWidth+"<br/>";
		data.innerHTML += "document.body可见区域高: "+document.body.clientHeight+"<br/>";
		data.innerHTML += "window.innerWidth可见区域宽: "+window.innerWidth+"<br/>";
		data.innerHTML += "window.innerHeight可见区域高: "+window.innerHeight+"<br/>";
		data.innerHTML += "document.documentElement可见区域宽: "+document.documentElement.clientWidth+"<br/>";
		data.innerHTML += "document.documentElement可见区域高: "+document.documentElement.clientHeight+"<br/>";
		data.innerHTML += "<h3>获取元素自身大小(跟是否有滚动条无关)</h3>";
		data.innerHTML += ".son自身宽度(offsetWidth属性,包括左右边框):"+son.offsetWidth+"<br/>";
		data.innerHTML += ".son自身高度(offsetHeight属性,包括上下边框):"+son.offsetHeight+"<br/>";
		data.innerHTML += ".son可视宽度(clientWidth属性,不包括左右边框):"+son.clientWidth+"<br/>";
		data.innerHTML += ".son可视高度(clientHeight属性,不包括上下边框):"+son.clientHeight+"<br/>";
		data.innerHTML += "<h3>获取.grandson滚动大小和可视大小</h3>";
		data.innerHTML += ".grandson滚动宽度(scrollWidth属性):"+grandson.scrollWidth+"<br/>";
		data.innerHTML += ".grandson滚动高度(scrollHeight属性):"+grandson.scrollHeight+"<br/>";
		data.innerHTML += ".grandson可视宽度(clientWidth属性,不包括竖直滚动条和border):"+grandson.clientWidth+"<br/>";
		data.innerHTML += ".grandson可视高度(clientHeight属性,不包括水平滚动条和border):"+grandson.clientHeight+"<br/>";
		data.innerHTML += "<h3>获取.grandson被卷去的大小(跟滚动条的位置有关)</h3>";
		data.innerHTML += ".grandson被卷去的高(scrollTop属性,竖直滚动条滑到最底端):"+grandson.scrollTop+"<br/>";
		data.innerHTML += ".grandson被卷去的左(scrollLeft属性,水平滚动条滑到最右端):"+grandson.scrollLeft+"<br/>";
		data.innerHTML += "<h3>获取浏览器窗口位置(跟窗口大小有关)</h3>";
		/*
		*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')&#63;window.screenLeft:window.screenX;
		var topPos = (typeof window.screenTop == 'number')&#63;window.screenTop:window.screenY;
		data.innerHTML += "body网页正文部分上(window.screenTop(Y)):"+ topPos+"<br/>";
		data.innerHTML += "body网页正文部分左(window.screenLeft(X)):"+ leftPos+"<br/>";
		data.innerHTML += "<h3>获取屏幕分辨率</h3>";
		data.innerHTML += "屏幕分辨率的高(window.screen.height):"+ window.screen.height+"<br/>";
		data.innerHTML += "屏幕分辨率的宽(window.screen.width):"+ window.screen.width+"<br/>";
		data.innerHTML += "<h3>获取屏幕可用的高宽</h3>";
		data.innerHTML += "屏幕分辨率的高(window.screen.availHeight):"+ window.screen.availHeight+"<br/>";
		data.innerHTML += "屏幕分辨率的宽(window.screen.availWidth):"+ window.screen.availWidth+"<br/>";
		data.innerHTML += "<h3>获取.father的边框大小</h3>";
		data.innerHTML += ".father上边框(clientTop):"+ father.clientTop+"<br/>";
		data.innerHTML += ".father左边框(clientLeft):"+ father.clientLeft+"<br/>";
		data.innerHTML += "<h3>获取.son到父元素边界的距离(即对应margin+父元素对应的border)</h3>";
		data.innerHTML += ".son到父元素上边界(offsetTop):"+ son.offsetTop+"<br/>";
		data.innerHTML += ".son到父元素左边界(offsetLeft):"+ son.offsetLeft+"<br/>";
	}
</script>
</head> 
<body> 
	<div class="father" id="father">
		<h3>这是父元素,屏幕分辨率是1366*768</h3>
		<div class="son" id="son">
			<h3>这是子元素,祝大家国庆快乐 </h3>
			<div class="grandson" id="grandson">
				<h3>这是孙子元素,祝大家国庆快乐 </h3>
				<h3>我的博客:www.jb51.net</h3>
				<h3>程序爱好者QQ群:</h3>
				<h3>259280570 </h3>
				<h3>欢迎你加入 </h3>
				<h3>国庆快乐 </h3>
			</div>
		</div>
	</div>
	<div class="data">
		<h3>数据输出</h3>
		<div id="data"></div>
	</div>
</body> 
</html> 
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