if students price

@@ -586,7 +586,7 @@ const _detailDataPkg = (origin, uid, vipLevel) => {
             }
         }
 
-        if (origin.productPriceBo.studentPrice) {
+        if (typeof origin.productPriceBo.studentPrice !== 'undefined') {
             // 学生价
             result.studentsPrice = '¥' + origin.productPriceBo.studentPrice;