location是瀏覽器內置對象，不能自己定義名為location的變量。
變量名中不能包含"-"符號
數組下標從0開始
<!doctype html>
<html lang="en">
<head> <meta charset="UTF-8"> <meta name="Generator" content="EditPlus?"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> <title>獲取URL</title> </head> <body><script type="text/javascript">
Mylocation = {};
Mylocation.search = '?username=789&mobienumber=789';
alert(Mylocation.search);
function relocationa()
{
alert(Mylocation.search);
}
function geturlinf()
{
var str=Mylocation.search;
var words=str.split('&');
var words1Len=words[0].length;
var words2Len=words[1].length;
alert(words[0].substring(10,words1Len));
alert(words[1].substring(12,words2Len));
}
</script>
<input type="button" value="再看壹遍" onclick="relocationa()" /></br>
<input type="button" value="彈出文本框信息" onclick="geturlinf()" /></br>
</body></html>