日常开发记录-uniapp数组值改变，页面跟着做出响应的方法

this.arr = [{hour: 8, name: 'yibo'}, {hour: 8, name: 'lisi'}]

1、强制刷新

this.$forceUpdate()

2、数组解构

this.arr = [...this.arr]

3、$set API

this.$set(this.arr[i], 'hour', this.arr[i].hour + 1)