nbcio-boot登录后首页的跟踪出现total问题修正

<a-col :sm="24" :md="12" :xl="6" :style="{ marginBottom: '24px' }">
        <chart-card :loading="loading" title="任务总数" :total="tasktotal.dataSource[0].total">
          <a-tooltip title="指标说明" slot="action">
            <a-icon type="info-circle-o" />
          </a-tooltip>
          <!--<div>
            <trend flag="up" style="margin-right: 16px;">
              <span slot="term">月同比</span>
              12%
            </trend>
            <trend flag="down">
              <span slot="term">日同比</span>
              11%
            </trend>
          </div>-->
          <template slot="footer">任务总数<span></span></template> 
        </chart-card>
      </a-col>
      <a-col :sm="24" :md="12" :xl="6" :style="{ marginBottom: '24px' }">
        <chart-card :loading="loading" title="流程总数" :total="flowtotal.dataSource[0].total">
          <a-tooltip title="指标说明" slot="action">
            <a-icon type="info-circle-o" />
          </a-tooltip>
          <div>
            <mini-area />
          </div>
          <template slot="footer">流程总数<span> {{  }}</span></template>
        </chart-card>
      </a-col>
      <a-col :sm="24" :md="12" :xl="6" :style="{

a-col :sm="24" :md="12" :xl="6" :style="{ marginBottom: '24px' }">
        <chart-card :loading="loading" title="任务总数" :total="tasksum">
          <a-tooltip title="指标说明" slot="action">
            <a-icon type="info-circle-o" />
          </a-tooltip>
          <template slot="footer">任务总数<span></span></template> 
        </chart-card> 
      </a-col>
      <a-col :sm="24" :md="12" :xl="6" :style="{ marginBottom: '24px' }">
        <chart-card :loading="loading" title="流程总数" :total="flowsum">
          <a-tooltip title="指标说明" slot="action">
            <a-icon type="info-circle-o" />
          </a-tooltip>
          <div>
            <mini-area />
          </div>
          <template slot="footer">流程总数<span> {{  }}</span></template>
        </chart-card>
      </a-col>

computed: {  //为了消除页面报错
      tasksum() {
        if(this.tasktotal.dataSource.length>0){
          return String(this.tasktotal.dataSource[0].total);
        }
      },
      flowsum() {
        if(this.flowtotal.dataSource.length>0){
          return String(this.flowtotal.dataSource[0].total);
        }
      },
    },  
    created() {
      setTimeout(() => {
        this.loading = !this.loading
      }, 100)
      console.log("created tasktotal=",this.tasktotal);  
      this.loadData(this.tasktotal);
      this.loadData(this.flowtotal);
      this.loadData(this.taskmonth);
      this.loadData(this.flowmonth);
      this.initLogInfo();
    },