在vue中循环中调用接口-promise.all()；按顺序执行异步处理

 const promise = nv.aiFaceData.items.map(async item => {
            const timelines = [];
            let cover, name;
            !isEmpty(item.existTime.items) &&
              item.existTime.items.forEach(val => {
                timelines.push({
                  start: val.startTime,
                  duration: val.endTime - val.startTime
                });
              });
            if (get(item, 'staffId')) {
              cover = await this.getStaffCover(item.staffId);
              name = item.staffBase.name;
            } else {
              name = this.getMobileNumber(item.mobileNumber); //如果不是该组织人员,显示手机号
            }
            const itemData = {
              info: {
                name,
                cover
              },
              timelines: cloneDeep(timelines)
            };
            aiData.push(itemData);
          });
          await Promise.all(promise);
          this.aiData = cloneDeep(aiData);

methods: {
  handleAdd (arr) {
     this.loading = true
     const allApi = []
     arr.forEach((item, index) => {
       const data = {
         id: item.id,
         name: item.name
       }
       const oneApi = api.add(data).then(res => {
         if (res.error_code === 0) {
           this.$message.success(res.msg)
         } else {
           this.$message.error(res.msg)
         }
       })
       allApi.push(oneApi)
     })
     Promise.all(allApi).then(() => {
       this.loading = false
     })
   }
}