vue时间选择器格式化，按钮选择器处理

效果如下：

 代码如下：

<div style="display:flex">
          <el-form-item label="签到奖励" style="float:left;margin-right:60px">
            <el-switch v-model="form.signinOpenReward" active-value="true" inactive-value="false"/>
          </el-form-item>

          <el-form-item label="签到奖励">
            <el-select v-model="form.signinReward" placeholder="请选择签到奖励" >
              <el-option v-for="item in types" :label="item.name" :value="item.id"/>
            </el-select>
          </el-form-item>
        </div>

 <el-form-item label="签到时间">
          <el-time-picker
            v-model="signinTime"
            :picker-options="{selectableRange: '00:00 - 23:59'}"
            :value-format="'HH:mm'"
            format="HH:mm"
            style="380px"
            is-range
            range-separator="至"
            start-placeholder="开始时间"
            end-placeholder="结束时间"
            placeholder="选择时间范围"
            @change="changeTime"/>
        </el-form-item>

................
 return {
      signinTime: '',
      form: {
        gzhLogo: '',
        signinTime: [],
        signinOpenReward: false,
        signinReward: '',
        signinCount: ''
      },
....................................
created() {
    // window.this = this
    this.initData()
  },
.........................
initData() {                                   //初始化
      this.$axios
        .get('base/signInSettings')
        .then(res => {
          if (res.content.signinTime) {
            this.signinTime = res.content.signinTime.split('-')
          }
          // 时间类型的最好弄一个中间值↑像是这种范围的 单选的就不用了
          this.types = res.content.couponList
          this.form = res.content
          this.form.signinReward = parseInt(this.form.signinReward)
          console.log(this.form)
          this.fileList = [{ name: '', url: this.form.gzhLogo }]
        })
        .catch(res => {})
..............................................
onSubmit() {                                                            //提交
      this.form.signinTime = this.signinTime
      if (this.form.signinTime && this.form.signinTime.length == 2) {
        this.form.signinTime = this.signinTime[0] + '-' + this.signinTime[1]
      }
      if (!this.form.signinTime || this.form.signinTime == '') {
        this.$message({
          message: '请选择签到时间',
          type: 'warning'
        })
        return
      }
      ..................................................
      var data = JSON.parse(JSON.stringify(this.form))
      this.$axios
        .postJSON('base/signInSettings/save', data)
        .then(data => {
          if (data.status == 200) {
            this.$message({
              message: data.message,
              type: 'success'
            })
            this.initData()
          } else {
            this.$message.error(data.message)
          }
        })
    }