【libevent】http客户端3：简单封装
LibEventHttp: 适用于简单的http请求
- LibEventHttp
/* Copyright (c) MediaArea.net SARL. All Rights Reserved.** Use of this source code is governed by a BSD-style license that can* be found in the License.html file in the root of the source tree.*///---------------------------------------------------------------------------
#ifdef HAVE_LIBEVENT//---------------------------------------------------------------------------