C# と VB.NET の質問掲示板

stringを分割してみた。ちょちょいといじればbyte[] に使えます。

using System;
using System.Collections.Generic;

public class Program {

  public static IEnumerable<string> split(string str, params int[] col) {
    int pos = 0;
    foreach ( int c in col ) {
      yield return str.Substring(pos, c);
      pos += c;
    }
  }

  public static void Main() {
    string input = "abcdefghijklmnopqrstuvwxy" +
                   "ABCDEFGHIJKLMNOPQRSTUVWXY" +
                   "abcdefghijklmnopqrstuvwxy" + 
                   "ABCDEFGHIJKLMNOPQRSTUVWXY";
    foreach ( string item in split(input, new int[] {2,3,5,7,8,5,10,20,40}) ) {
      System.Console.WriteLine("[{0}]", item);
    }
  }
}