45、JS 獲取URL傳遞參數數據

方式一、正則表達式

function GetQueryString(name) { 
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i"); 
    var r = window.location.search.substr(1).match(reg); //獲取url中"?"符後的字符串並正則匹配
    var context = ""; 
    if (r != null) 
        context = r[2]; 
    reg = null; 
    r = null; 
    return context == null || context == "" || context == "undefined" ? "" : context; 
}

方式二、數組

function GetQueryString(name) {
    var url = location.search; //獲取url中"?"符後的字串
    var theRequest = new Object();
    if (url.indexOf("?") != -1) {
        var str = url.substr(1);
        strs = str.split("&");
        for(var i = 0; i < strs.length; i ++) {
            theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]);
        }
    }
    return theRequest[name];
}