js 抓取Google词库内容（仅供学习）

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>xmlhttp获取网页内容</title>

var result='';

function getXML(URL)

{

var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

xmlhttp.Open("GET",URL, false);

try {

xmlhttp.send();

var result = xmlhttp.status;}

catch(e) {return(false);}

if(result==200) {

return(xmlhttp.responseText);

}

delete(xmlhttp)

}

//取数据

function getData()

{

try

{

var keystr=getparastr("key");

//document.write(keystr)

if(keystr!=null)

{

document.getElementById("txtKey").value=decodeURI(keystr);

var url="http://www.google.com/search?hl=en&q=define%3A"+keystr+"&aq=f&oq=";

var resultStr = getXML(url);

var cr = resultStr.match(/<ul[\s|\S]*?<\/ul>/);

if (cr != null && typeof(cr) == 'object' && cr.length != null) // 如果计算结果是一个数组, 则取出所有数组的值

{

for ( i = 0; i < cr.length; i++ )

{

result += cr[i];

}

//document.write("ddd")

}

document.getElementById('divContent').innerHTML=result;

//resultwrite();

}

catch(e)

{

alert(e);

}

//取参数

function getparastr(strname)

{

var hrefstr,pos,parastr,para,tempstr;

hrefstr = window.location.href;

pos = hrefstr.indexOf("?")

parastr = hrefstr.substring(pos+1);

para = parastr.split("&");

tempstr="";

for(i=0;i<para.length;i++)

{

tempstr = para[i];

pos = tempstr.indexOf("=");

if(tempstr.substring(0,pos) == strname)

{

return tempstr.substring(pos+1);

}

return null;

}

//跳转

function ongo(obj)

{

var objtxt=document.getElementById(obj).value;

//document.write(objtxt)

var url="Google.html";//要跳转的网页

window.location.href=url+"?key="+encodeURI(objtxt);

}

function resultwrite()

{

document.write(result);

}

</script>

</HEAD>

</div>

<br/>

</div>

</body>

</HTML>