url参数转换成字典类型

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var arr = "www.baidu.com?id=123&name=mu&re=mmm&some=ooooo";
//字典结构，json对象
function ch(arg){
    var reg = arg.match(/(\w+)=(\w+){1,}/g);
    //或者
    //var rgs = new RegExp("(\\w+)=(\\w+){1,}","g");
    //var reg = arg.match(rgs);
    console.log(reg);
    var rrr = {};
    for( var i=0;i<reg.length;i++){
        var result = reg[i].split("=");
        rrr[result[0]] = result[1];
    }
    return rrr;
}
console.log(ch(arr));