var priceChecked=req.query.priceChecked;console.log(priceChecked)//這里是1 ?var params={}if(priceChecked!='all'){????switch (priceChecked){????????case '0':priceGt = 0;priceLte=100;break;????????case '1':priceGt = 100;priceLte=500;break;????????case '2':priceGt = 500;priceLte=1000;break;????????case '3':priceGt = 1000;priceLte=5000;break;????} ? ? ? ?params = {????????????salePrice:{????????????????$gt:priceGt,????????????????$lte:priceLte????????????}????}console.log(params)//為什么這里是空}switch為什么不走case，switch?(“1”)就走case1,但是獲取到的1就是字符串1請求地址GET /goods?page=1&pageSize=8&sort=1&priceChecked=1;