输入框为空不能查询

if(!that.addObj.researcherCode){
           this.$store.commit('showErrorInfo', {type: 'fail', msg: '请选择研究员'});
           return false
                }

 if(!this.startTime){
        console.log('222');
        this.$Message.error({
            content: "请选择开始时间！",
            duration: 5
          });
          return false
      }