string exefile = System.Environment.CurrentDirectory + "\\dip\\DrgClientShow.exe"; if (File.Exists(exefile)) { Process process = new Process(); // params 为 string 类型的参数,多个参数以空格分隔,如果某个参数为空 ProcessStartInfo startInfo = new ProcessStartInfo(exefile); startInfo.Arguments = patient_no;// Encrypt(inputstr); process.StartInfo = startInfo; process.Start(); }