fix sign setting

Helius

2022-05-10 779298eb527bce4c508ea9d1b050c4a795dddebe

 src/main/java/cc/mrbird/febs/mall/dto/AddMallGoodsSkuDto.java

@@ -23,4 +23,6 @@

    private String presentPrice;

    private BigDecimal costPrice;

}