直接修改数组检测不到变化:12vm.Arr[index] = newItem;vm.Arr.length = newLength; 由于JavaScript的限制,采用以下方法: 1234// way 1Vue.set(old.Arr, index, newItem);// way 2old.Arr.splice(index, 1, newItem); Stan Ye StanYe's blog Better to run than curse the road 赏