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52 { tArr.push( Object.keys(item).map((v,i)=>{ return { id : v, count : item[v].count } }) ); }); 方法二; arr.reduce((last,current) => { return last.concat(Object.keys(current).map(a => { return { 'id': a, 'count': current[a].count } })) },[]) console.log(tArr);