//创建formData对象
var formData = new FormData();    
//添加键值对
formData.append("team_id", this.team_id)    
formData.append("content", this.content)    
formData.append("img", this.img)
formData.append("match_id", this.id)
formData.append("section", status ? 1 : 0)
//设置请求头
var config = {
  headers: {
    ‘Content-Type‘: ‘multipart/form-data‘
  }
}
//发送请求
axios.post(‘/liveApi‘, formData, config).then(function (res) {
  console.log(res)
})

//格式
var formData = new FormData(someFormElement);