import UIKit

let HGL_ScreenHeight = UIScreen.main.bounds.size.height

let HGL_ScreenWidth = UIScreen.main.bounds.size.width

import UIKit

import Alamofire

enum MethodType:NSInteger {

    case GET

    case POST

}

class NetWorkTools: NSObject {

    class func requestData(_ type : MethodType, URLString : String, parameters : [String : Any]? = nil, finishedCallback : @escaping (_ result : Any) -> ()) {

        //1.获取类型

        let method = type == .GET ? HTTPMethod.get : HTTPMethod.post

        // 2.发送网络请求

        Alamofire.request(URLString, method: method, parameters: parameters).responseJSON { (response) in

            // 3.获取结果

            guard let result = response.result.value else {

                print(response.result.error!)

                return

            }

            // 4.将结果回调出去

            finishedCallback(result)

        }

    }

}

NetWorkTools.requestData(.POST, URLString: "http://www.chexijie.com/appapi/api/gethelps", parameters: [" category_id":""]) { (result) in

            print(result)

        }