取消axios请求```js var CancelToken = axios.CancelToken var sourc

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.')