vue中用iframe嵌套页面 判断进入层级并返回

data () {return {para:{},htmlStr:'',htmlSrc:'',rlen:history.length,}},mounted () {},methods: {//返回goBack () {let len = this.rlen - history.length - 1;//-1是不进入iframe页面的下级页面直接退出的话，执行后退一步的操作this.$router.go(len);},}