// prmoise.race 實現(xiàn)請求超時攔截
      const TimeOutFn = (url,time)=>{

        // 創(chuàng)建定時器reject函數(shù)
        const timeOut = new Promise((resolve,reject)=>{
          setTimeout(()=>{
            reject("請求超時")
          },time)
        })
        const FetchData = fetch(url)
        
        return Promise.race([timeOut,FetchData])
      }


      TimeOutFn("https://dog.ceo/api/breeds/image/random",2).catch(res=>{
        console.log(res)
      })