// const {couponUpgrade = [], coupon = [], COOPERATION = []} = productInfoList // 默认值不生效
const couponUpgrade = productInfoList['couponUpgrade'] || []
const coupon = productInfoList['coupon'] || []
const COOPERATION = productInfoList['COOPERATION'] || []
//要写成下面的写法才能生效,感觉太low了
测试是支持的呀