复制代码代码如下:
<Html>
<head>
<type skrip = "Teks/JavaScript">
/ * 判断设备是否为 pc */
fungsi ispc () {
var useragentInfo = navigator.useragent;
var agents = array baru ("android", "iPhone", "Symbianos", "windows phone", "iPad", "iPod");
var flag = true;
untuk (var v = 0; v <agents.length; v ++) {
if (useragentInfo.indexof (agen [v])> 0) {
bendera = false;
merusak;
}
}
pengembalian bendera;
}
/ * 调整图片大小 *//
fungsi autoresizeImage (maxwidth, maxheight, objimg) {
var img = gambar baru ();
img.src = objimg.src;
var hratio;
var wratio;
rasio var = 1;
var w = img.width;
var h = img.height;
wratio = maxwidth / w;
hratio = maxheight / h;
if (maxwidth == 0 && maxheight == 0) {
Rasio = 1;
} else if (maxwidth == 0) {//
if (hratio <1) rasio = hratio;
} else if (maxheight == 0) {
if (wratio <1) rasio = wratio;
} lain if (wratio <1 || hratio <1) {
Rasio = (wratio <= hratio? Wratio: hratio);
}
if (rasio <1) {
rasio w = w *;
rasio h = h *;
}
objimg.height = h;
objimg.width = w;
}
/ * 设置不同设备的缩放策略 *//
fungsi setimg (tagid, pcwidth, pcheight, appwidth, appheight) {
var tag = document.geteLementById (tagId);
var gambar = tag.getElementsbyTagname ("img");
untuk (var i = 0; i <gambar.length; i ++) {
if (ISPC) {
AutoresizeImage (pcwidth, pcheight, gambar [i]);
}kalau tidak{
AutoresizeImage (appwidth, appheight, gambar [i]);
}
}
}
window.onload = function () {
setimg ('imgdiv', 300,0,300,0);
}
</script>
</head>
<body>
<Div id = "imgdiv">
<img src = "http://192.168.1.116:9999/ffzx/news/20140205/015212022_1.jpg"/>
<div>
<img src = "http://192.168.1.116:9999/ffzx/news/20140208/1386835169183.jpg"/>
</div>
</div>
<br>
</body>
</html>