Process.Start, do nothing if input file == 0 kb

Question

我有一个问题，我可以使用Process.Start启动可执行文件，尽管可以这样说：如果input.txt == 0kb不执行任何操作，否则执行进程？

Process.Start("cmd.exe", @"/c test.exe -f input.txt > output.txt").WaitForExit();

Answer 1

Use FileInfo to get the size of the input file and only run the process if it is larger than 0:

FileInfo fi = new FileInfo("input.txt");
if(fi.Length > 0)
{
  Process.Start("cmd.exe", @"/c test.exe -f input.txt > output.txt").WaitForExit();
}