var arr1 = [{value:222,key:"生活"},{value:333,key:"指導(dǎo)"},{value:444,key:"開始"},{value:555,key:"裂了"}]//需要返回的對應(yīng)內(nèi)容
 console.log(arr1.length);
    var arr2 =[]
    for(let i=0;i<=arr1.length-1;i++){//循環(huán)對應(yīng)的長度次數(shù)
        console.log(arr[i]);
        if(arr[i] == arr1[i].value){arr2.push(arr1[i].key)} //如果傳遞的數(shù)據(jù)中存在對象value中，則吧對象數(shù)據(jù)中的key內(nèi)容放進去
    }
    console.log(arr2);