使用第三方控件实现RAR文件自动解压 ，自动解压rar 文件-Third-party control to achieve automatic extracting RAR file, automatically extract the rar file

分析理想论坛数据地址，解析出百度网盘下载地址后下载数据并解压缩数据到大智慧L2目录的软件。 使用IDHTTP下载，并用了TDFUnRar控件解压缩。-Analysis ideal forum for data address and resolve software to download data and decompress the data directory to the great wisdom L2 Baidu network disk download address. IDH