获取页面标签里面的内容

var div = document.getElementById("imageInfo");
var images = div.getElementsByTagName("img");
var len = images.length;
if (len <= 0) {
return;
}
for (var i = 0; i < len; i++) {
var sr =images[i].getAttribute("src");
list += sr;
if (i < (len-1)) {
list += "|";
}
console.dir(sr);
}