价格计算：  字 选择时间

[{"title":"0-500(1个工作日)","price":"500","num":null},{"title":"501-1000(1个工作日)","price":"1000","num":null},{"title":"1001-1500(1个工作日)","price":"1500","num":null},{"title":"1001-1500(2个工作日)","price":"1200","num":null},{"title":"1501-2500(3个工作日)","price":"2000","num":null},{"title":"2501-3500(3个工作日)","price":"2800","num":null},{"title":"3501-4500(3个工作日)","price":"3600","num":null},{"title":"4501-6000(4个工作日)","price":"4800","num":null},{"title":"6001-8000(4个工作日)","price":"6000","num":null},{"title":"8001-10000(5个工作日)","price":"7500","num":null},{"title":"10001-12000(5个工作日)","price":"9000","num":null}]