根据两个数组中的值对比，获取数组中值所对应的下标，然后根据下标去改变一个数组中所对应下标的值 let arr = [0, 0, 0, 0, 0, 0, 0]; let arrTime=['04-01','04-02','04-03','04-04','04-05','04-06','04-07']; let arr2=[ {value:4,label:'04-02'}, {value:8,label:'04-04'}, {value:6,label:'04-05'}, {value:2,label:'04-07'} ] arrTime.map((item, index) => { arr2.map(itemone => { if (item == itemone.label) { arr [index] = itemone.value } }) })