示例值:{"17724":[{"discount":"99","id":874,"type":2,"level_id":22},{"discount":"5.00","id":875,"type":1,"level_id":62},{"discount":"2.00","id":876,"type":1,"level_id":176},{"discount":"3.00","id":877,"type":1,"level_id":177},{"discount":"4.00","id":878,"type":1,"level_id":178}],"17725":[{"discount":"1.00","id":879,"type":1,"level_id":22},{"discount":"5.00","id":880,"type":1,"level_id":62},{"discount":"2.00","id":881,"type":2,"level_id":176},{"discount":"3.00","id":882,"type":1,"level_id":177},{"discount":"4.00","id":883,"type":1,"level_id":178}]}