axios 异步定义方法

//示例一：同步
    async changeMailFlag(data) {
      try {
        const res = await saveOverSeasMailFlag({
          mailFlag: data.data.mailFlag,
          groupId: data.data.groupId
        });
        if (res.code == 0) {
          this.$message.success('保存邮寄状态成功');
          this.queryOverseasInfoList();
        } else throw new Error(res.msg);
      } catch (e) {
        this.$message.error(`保存邮寄状态失败，${e.message}`);
      }
    }

// 示例二：异步then进行回调
saveMoveIn() {
      let req = {
        ...this.entryInfo
      };
      saveMoveIn(req)
        .then(res => {
          if (res.code == 0) {
            this.$message.success('添加成功');
            // this.getMoveInList();
            return;
          } else {
            this.$message.error(res.msg);
          }
        })
        .then(() => {
          this.getMoveInList();
        });
    },