var arr=[1,2,3,4,5]var brr=
[
{stepIndex: 1, title: "第一个",num: ""},
{stepIndex: 2, title: "第二个",num: ""},
{stepIndex: 3, title: "第三个",num: ""},
{stepIndex: 4, title: "第四个",num: ""},
{stepIndex: 5, title: "第五个",num: ""},
]brr.map((val,index)=>{
val.num=arr[index]
})
console.log(brr)因篇幅问题不能全部显示，请点此查看更多更全内容