var CancelToken = axios.CancelToken;
var source = CancelToken.source();

axios.get('/user/12345', {
 cancelToken: source.token
}).catch(function(thrown) {
 if (axios.isCancel(thrown)) {
  console.log('Request canceled', thrown.message);
 } else {
  // 处理错误
 }
});

// 取消请求（message 参数是可选的）
source.cancel('Operation canceled by the user.');

var CancelToken = axios.CancelToken;
var cancel;

axios.get('/user/12345', {
 cancelToken: new CancelToken(function executor(c) {
  // executor 函数接收一个 cancel 函数作为参数
  cancel = c;
 })
});

// 取消请求
cancel();

import request from '../utils/request' // 配置过的Axios 对象
import axios from 'axios' 

export function getLatenessDetailSize(params, that) { 
  return request({
    url: '/api/v1/behaviour/latenessDetailSize', 
    method: 'post',
    params: params,
    cancelToken: new axios.CancelToken(function executor(c) { // 设置 cancel token
      that.source = c;
    })
  })
}

export xxx

import { getLatenessDetail } from "../api";
export default {
    data() {
      return {
        tableData: [],
        total: 0,
        page: 1,
        loadTable: false,
        params: { },
        source: null
      }
    },
    methods: {
      cancelQuest() {
        if (typeof this.source === 'function') {
          this.source('终止请求'); //取消请求
        }
      },
      getTableData(val) {
        this.cancelQuest() // 请求发送前调用
        this.page = val
        this.loadTable = true
        getLatenessDetail(this.params, (val - 1) * 10, this)
          .then(
            res => {
              this.loadTable = false
              this.tableData = res.data
            }
        )
    }
}