vue+uniapp 获取上一页直接传递的参数

在小程序里页面之间跳转有时候需要传递参数给下个页面用

const toDetail = item => {
      uni.navigateTo({
         url: `/pagesFood/stu/FoodSelection?groupCode=1&merchCode=2`,
      });
    };

那么下个页面就要获取到这些参数，在实际开发中，我们需要区分当前运行环境是小程序还是web浏览器，因为两个环境下获取方式有些差距

 let groupCode = "";
 let merchCode = "";

 const routes = getCurrentPages();
     const route = routes[routes.length - 1];
     onMounted(() => {
       const uniPlatform = uni.getSystemInfoSync().uniPlatform;
       if(uniPlatform==="web"){
          groupCode = route.$page.options.groupCode;
          merchCode = route.$page.options.merchCode;
       }else{
         groupCode = route.options.groupCode;
         merchCode = route.options.merchCode;
       }
       console.log("111===",groupCode,merchCode);
     
     });