解决vue接口数据赋值给data没有反应的问题

data() {
 return {
  slides: []
 }
},

mounted() {
 this.request()
},
methods: {
 request() {
  this.$http.post('xxxxxxxxxxxx', {},
   (res) => {
    if (is. (res)) {
     if (res.status === 'succ') {
      this.slides = res.data.useddevice_list
      console.log(this.slides)
     } else {
      console.log(res)
     }
    } else {
     this.$toast.show('加载失败')
    }
   }, (data) => {
    this.$toast.show('请求数据失败')
   })
 }
}

data() {
 return {
  slides: [null]
 }
},

mounted() {
 this.request()
},
methods: {
 request() {
  this.$http.post('xxxxxxxxx', {},
   (res) => {
    if (is. (res)) {
     if (res.status === 'succ') {
      this.slides = res.data.useddevice_list
      console.log(this.slides)
     } else {
      console.log(res)
     }
    } else {
     this.$toast.show('加载失败')
    }
   }, (data) => {
    this.$toast.show('请求数据失败')
   })
 }