10秒后去某个页面的方法

data () {
　　return {
　　　　

　　　　timer: null

　　}
}
tenGo () {
            const TIME_COUNT = 10
            if (!this.timer) {
                this.countTime = TIME_COUNT
                this.timer = setInterval(() => {
                    if (this.countTime > 0 && this.countTime <= TIME_COUNT) {
                        this.countTime --
                    } else {
                        clearInterval(this.timer)
                        this.timer = null
                        this.$router.push({
                            path: '/bkShop/myExchange'
                        })
                    }
                }, 1000)
            }
        },