1、html

<el-checkbox-group v-model="radio1" @change="handleTime">
      <el-checkbox  label="1" border >近一周</el-checkbox>
      <el-checkbox label="2" border>近一个月</el-checkbox>
      <el-checkbox label="3" border >近半年</el-checkbox>
      <el-checkbox  label="4" border >近一年</el-checkbox>
 </el-checkbox-group>

2、JS

       // 发布时间
        handleTime(value){
          if (this.radio1.length > 0) {  
                this.radio1 = [value[this.radio1.length-1]];  
         }
         const times = this.radio1[0]
         if(this.radio1[0] !== undefined) {
             this.time(times)
         } else {
              this.params.start_time = null
              this.params.end_time = null
         }
        },

3 、data里

radio1:[],