<script type="text/javascript">//获取QueryString的数组function getQueryString() {    var result = location.search.match(new RegExp("[\?\&][^\?\&]+=[^\?\&]+", "g"));    if (result == null) {        return "";    }    for (var i = 0; i < result.length; i++) {        result[i] = result[i].substring(1);    }    return result;}//根据QueryString参数名称获取值function getQueryStringByName(name) {    var result = location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));    if (result == null || result.length < 1) {        return "";    }    return result[1];}//根据QueryString参数索引获取值function getQueryStringByIndex(index) {    if (index == null) {        return "";    }    var queryStringList = getQueryString();    if (index >= queryStringList.length) {        return "";    }    var result = queryStringList[index];    var startIndex = result.indexOf("=") + 1;    result = result.substring(startIndex);    return result;}alert(getQueryString())alert(getQueryStringByName("user"))alert(getQueryStringByIndex("0"))alert(getQueryStringByIndex("1"))</script>

javascript获取url参数