慕慕森
let A = [1,3,5,7]; let B = [2,4,6,8]; let C = A.concat(B).sort(); console.log(C)你可以像下面这样连接和排序 let A = [1,3,5,7]; let B = [2,4,6,8]; let C = A.concat(B); console.log(C.sort())你也可以用简单的 for 循环来做, let A = [1,3,5,7]; let B = [2,4,6,8]; let C = []; for (let i = 0; i < A.length; i++) { C.push(A[i]); } for (let j = 0; j < B.length; j++) { C.push(B[j]); } console.log(C.sort())如果你想使用reduce, let A = [1,3,5,7]; let B = [2,4,6,8]; const C = B.reduce((result,current)=> result.concat(current), A).sort(); console.log(C);