element el-date-picker 日期时间选择器 有默认值后选其他日期回显无效

//html：
<el-form-item label="开始日期" prop="cxBeginTime">
        <el-date-picker
          v-model="queryParams.cxBeginTime"
          type="date"
          placeholder="选择开始日期">
        </el-date-picker value-format="yyyy-MM-dd" format="yyyy-MM-dd">
</el-form-item>

//data:
queryParams:{cxBeginTime:'',cxEndTime:''},

//
computed: {
      timeDefault() {
        var date = new Date();
        var s1 = date.getFullYear() + "-" + (date.getMonth() + 1) + "-" + (date.getDate()+1);
        return s1;
      }
    },
  mounted() {
        // 初始化查询，默认为后一天
      this.$set(this.queryParams,"cxBeginTime",this.timeDefault) this.$set(this.queryParams,"cxEndTime",this.timeDefault)
  },

mounted()里面，不要用  this.ruleForm.dateValue = this.timeDefault; 这种方式赋值，本文参考  【https://blog.csdn.net/XZZ2222/article/details/91806591?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param】