//文件冲突测试 FileStream fs1 = new FileStream("readtest1.txt", FileMode.Open, FileAccess.Read, FileShare.ReadWrite); int i1 = fs1.ReadByte(); FileStream fs2 = new FileStream("readtest1.txt",FileMode.Open,FileAccess.Read,FileShare.ReadWrite); textBox1.Text = i1.ToString()+" "; FileStream fs3 = new FileStream("readtest1.txt", FileMode.Create,FileAccess.Write); fs3.WriteByte(24); fs3.Flush(); int i2 = fs2.ReadByte(); textBox1.Text += i2.ToString(); fs3.Close(); fs2.Close(); fs1.Close();
FileAccess.Read指定文件为Read,FileShare.ReadWrite指定其他进程可以读写该文件。如不加FileShare.ReadWrite只加FileAccess.Read则只能同时读,不加FileAccess.Read则同时读也不行。