jQuery将form列表转JSON

function filedSelectJson(){
    var a = {};
    var reserveVenueCons = $("#orderForm").serializeArray();
    var numreg = /\[[0-9]*\]\./;//正则表达式
    var index = 0;
    var attnum = 5;//list对象中有几个属性，这里有5个：reserveField.id，reserveField.name，orderPrice，startTime，endTime
    var tmp = 0 ;
    $.each(reserveVenueCons,function(n,v){
        var name = v.name;
        var names = name.split(numreg);//以 [0-9]. 为枢纽分割字符串
        if(names.length > 1){//数组属性
            if(!a[names[0]])//如果a[]没有属性names[0]
                 a[names[0]]= [];
            if(!a[names[0]][index]) //如果a[names[0]]没有属性index
                 a[names[0]][index]= {};
            a[names[0]][index][names[1]] = v.value;//设置
            tmp++;
            if((tmp)%attnum==0){
                index++;
            }
        }else{//普通属性
            a[v.name] = v.value;
        }
    });
    var rtn=JSON.stringify(a);
    return rtn;
}

"{"consDate":"2016-05-09","reserveVenue.id":"lL2ZU7tcadSMiCRxyyY","venueConsList":[{"reserveField.id":"9pkwvQImMhz9wZl4fso","reserveField.name":"网球1号场","orderPrice":"90.0","startTime":"23:30","endTime":"00:00"},{"reserveField.id":"fgR23dUaV9a5T08bfCP","reserveField.name":"网球2号场","orderPrice":"90.0","startTime":"23:30","endTime":"00:00"},{"reserveField.id":"3zr4aWm6iZ4GwSClQal","reserveField.name":"网球3号场","orderPrice":"90.0","startTime":"23:30","endTime":"00:00"},{"reserveField.id":"eXW6GxYkuzobRwb7yy6","reserveField.name":"网球4号场","orderPrice":"90.0","startTime":"23:30","endTime":"00:00"}]}"