c#用rar压缩文件

string startpath = "E:\\send\\one\\234";
string endpath = "E:\\savefile\\456.rar";
System.Diagnostics.Process pro = new System.Diagnostics.Process();
pro.StartInfo.FileName = System.Environment.CurrentDirectory + "\\WinRAR.exe";//WinRAR.exe的路径，放在exe同目录下
pro.StartInfo.Arguments = string.Format("a -en  -ep1 {0} {1}", endpath, startpath);//压缩保存文件，需要压缩的文件
pro.Start();
pro.WaitForExit();无期限等待进程退出
pro.Close();
pro.Dispose();