C# 打开文件 Process

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);
}