js 获取?后面的参数值与=后面的参数两种方法

第一种方法  

function GetRequest() {
    var url = location.search; //获取url中"?"符后的字串
    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;
}

调用方法

var lotCode = GetRequest()['lotCode'];

第二种方法

function count() {
    var search = window.location.search.substr(1);
    if (search.indexOf('&') !== -1) {
        var code = search.split('&');
        var obj = {};
        for (v of code) {
            let v2 = v.split('=');
            obj[v2[0]] = v2[1];
        }
        return obj;
    } else {
        var code = search.split('=');
        let obj = {};
        obj[code[0]] = code[1];
        return obj;
    }
}

调用方法

var customId = count();