try
{
ProcessStartInfo processStartInfo = new ProcessStartInfo(file);
Process process = new Process();
process.StartInfo = processStartInfo;
process.StartInfo.UseShellExecute = true;
process.Start();
}
catch (Exception ex)
{
MessageBox.Show("没找到打开该文件的关联程序!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}