参数序列化（针对相同参数是一个集合时）

export function runninglog (param) {
  return axios({
    url: '/api/DeviceLog/machinemonitor',
    method: 'get',
    params: param,
    paramsSerializer: function (params) {
      if (typeof (params.machineId) === 'number') {
        let yourNewParams = `machineId=${params.machineId}`
        yourNewParams = yourNewParams + '&pageNumber=' + params.pageNumber + '&pageSize=' + params.pageSize + '&startTime=' + params.startTime + '&endTime=' + params.endTime
        return yourNewParams
      } else {
        let yourNewParams = params.machineId.map((item) => `machineId=${item}`).join('&')
        yourNewParams = yourNewParams + '&pageNumber=' + params.pageNumber + '&pageSize=' + params.pageSize + '&startTime=' + params.startTime + '&endTime=' + params.endTime
        return yourNewParams
      }
    }
  })
}