xpath位置为/html/body/div[1]/div/div[2]/div[4]/div[2]/script[2]部分内容为shippingFee : 0,productCategoryId : '24379',genreCategoryIdList : ["1","2513","2522","2640","41755","41756"],想要提取24379。如果用正则表达式结合xpath实现?