{"id":1184,"date":"2008-05-12T23:34:00","date_gmt":"2008-05-12T14:34:00","guid":{"rendered":"https:\/\/hdmr.org\/d\/read.php\/1210602842"},"modified":"2008-05-12T23:34:00","modified_gmt":"2008-05-12T14:34:00","slug":"read-1210602842","status":"publish","type":"post","link":"http:\/\/hdmr.org\/d\/read.php\/1210602842","title":{"rendered":"\u5024\u6e21\u3057\u3068\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u7f60"},"content":{"rendered":"

\u6700\u8fd1C#\u306e\u8a71\u3070\u3063\u304b\u308a\u3060\u304c\u3001\u90e8\u306e\u30da\u30fc\u30b8\u3067OOP\u7279\u96c6\u3092\u66f8\u3044\u3066\u308b\u3082\u306e\u3067\u3044\u308d\u3044\u308d\u8abf\u3079\u3066\u305f\u3093\u3060\u3002
\u3055\u3066\u3001\u305d\u3046\u3044\u3048\u3070C#\u306e\u5f15\u6570\u306f\u5024\u6e21\u3057\u3068\u3044\u3046\u8a71\u304c\u3042\u3063\u305f\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u3044\u308d\u3044\u308d\u8a66\u3057\u3066\u307f\u305f\u3002
\u307e\u305a\u3053\u3093\u306a\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u3066\u307f\u305f\u3002<\/p>\n

class myint : IFormattable {
  private int v;
  public myint(int v0) { v=v0; }
  public void incl() { v++; }
  public string ToString(string format, IFormatProvider formatProvider) { return v.ToString(format, formatProvider); }
}<\/pre>\n
\u4e2d\u306bint\u30921\u3064\u683c\u7d0d\u3057\u305f\u3060\u3051\u306e\u30af\u30e9\u30b9\u3060\u306a\u3002\u30af\u30e9\u30b9\u3068\u3044\u3046\u3068\u3053\u308d\u306f\u91cd\u8981\u3001\u69cb\u9020\u4f53\u3067\u306f\u306a\u3044\u3002
\u3060\u3044\u305f\u3044\u52d5\u4f5c\u306f\u4e88\u60f3\u3067\u304d\u308b\u3068\u601d\u3046\u3051\u3069\u306d\u3002
\u305d\u306e\u4e0a\u3067\u3053\u3093\u306a\u3082\u306e\u3092\u52d5\u304b\u3057\u3066\u307f\u305f<\/p>\n
int i=10;
myint mi=new myint(i);
Console.WriteLine("{0}", i);
mi.incl();
Console.WriteLine("{0}", i);
Console.ReadKey(false);<\/pre>\n
\u3055\u3066\u3001\u3053\u308c\u3092\u52d5\u304b\u3059\u3068\u4e21\u65b910\u304c\u8fd4\u3063\u3066\u304d\u305f\u3002
\u624b\u9806\u3068\u3057\u3066\u306f\u307e\u305amyint\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u304c\u3001\u3053\u306e\u3068\u304di\u306e\u4e2d\u306b\u5165\u3063\u305f10\u3068\u3044\u3046\u5024\u3092\u5909\u6570v\u306b\u4ee3\u5165\u3057\u305f\u3002
\u306a\u306e\u3067\u3053\u306e\u3068\u304d\u5909\u6570v\u306f10\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u5f53\u7136\u3053\u3053\u306e\u5024\u30921\u5897\u3084\u3057\u305f\u3068\u3053\u308d\u3067i\u306b\u306f\u5f71\u97ff\u304c\u306a\u3044\u3002
\u5024\u6e21\u3057\u3068\u3044\u3046\u306e\u306f\u4eee\u5909\u6570(\u3067\u3042\u3063\u3066\u308b\u306e\u304b)\u306ev0\u306f\u3001\u5f15\u6570\u306b\u66f8\u3044\u305f\u5909\u6570\u3001\u4eca\u56de\u306fi\u3001\u3092\u4e38\u3054\u3068\u30b3\u30d4\u30fc\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u3002
\u3060\u304b\u3089\u3001\u4eee\u5909\u6570\u306ev0\u3068\u5f15\u6570\u306b\u66f8\u3044\u305f\u5909\u6570i\u306f\u7121\u95a2\u4fc2\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u306f\u308f\u304b\u308b\u3068\u304a\u3082\u3046\u3002
\u3055\u3089\u306b\u69cb\u9020\u4f53(\u5024\u578b)\u306e\u4ee3\u5165\u306f\u4e2d\u8eab\u3092\u4e38\u3054\u3068\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u3067\u884c\u3046\u306e\u3067\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067v\u306b\u4ee3\u5165\u3057\u305f\u6642\u70b9\u3067\u4eee\u5909\u6570\u306ev0\u3068\u306f\u7121\u95a2\u4fc2\u3002
\u305d\u306ev0\u3092incl\u30e1\u30bd\u30c3\u30c9\u3067\u3044\u3058\u308d\u3046\u304c\u3053\u308c\u3082\u7121\u95a2\u4fc2\u3002
\u3060\u304b\u3089incl\u30e1\u30bd\u30c3\u30c9\u3092\u52d5\u304b\u3059\u524d\u5f8c\u3067i\u306e\u5024\u306f\u5909\u308f\u3063\u3066\u306a\u3044\u3002\u3053\u308c\u304c\u69cb\u9020\u4f53\u306e\u7279\u5fb4\u3067\u3059\u306d\u3002
\u3055\u3066\u3001\u3067\u306f\u4e2d\u306b\u5165\u308c\u308b\u5909\u6570\u3092\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u3057\u3066\u307f\u3088\u3046\u3002<\/p>\n
class mymyint : IFormattable {
  private myint v;
  public mymyint(myint v0) { v=v0; }
  public void incl() { v.incl(); }
  public string ToString(string format, IFormatProvider formatProvider) { return v.ToString(format, formatProvider); }
}<\/pre>\n
\u3055\u3063\u304d\u3068\u3060\u3044\u305f\u3044\u540c\u3058\u3082\u306e\u3060\u306a\u3002\u9055\u3046\u306e\u306fmyint\u3092\u7d0d\u3081\u305f\u3082\u306e\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3001
\u305d\u308c\u306b\u3068\u3082\u306a\u3063\u3066incl\u30e1\u30bd\u30c3\u30c9\u304c\u305d\u3053\u304b\u3089\u3055\u3089\u306bmyint\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306eincl\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u308b\u3002
\u3053\u308c\u3067\u3082\u3063\u3066\u3053\u3093\u306a\u3082\u306e\u3092\u52d5\u304b\u3057\u3066\u307f\u308b\u3002<\/p>\n
myint mi=new myint(10);
mymyint mmi=new mymyint(mi);
Console.WriteLine("{0}", mi);
mmi.incl();
Console.WriteLine("{0}", mi);
Console.ReadKey(false);<\/pre>\n
\u307e\u3041\u3055\u3063\u304d\u3068\u3042\u307e\u308a\u304b\u308f\u3089\u306a\u3044\u3002\u7d50\u679c\u306f\u524d\u304c10\u3001\u5f8c\u304c11\u3002
\u306a\u305c\u3053\u3046\u306a\u308b\u306e\u304b\u3068\u3044\u3046\u8a71\u3060\u304c\u3001\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u5909\u6570\u306fC\u3067\u8a00\u3046\u3068\u3053\u308d\u306e\u30dd\u30a4\u30f3\u30bf\u3060\u3002
\u306a\u306e\u3067\u3001mi\u306b\u306f1\u884c\u76ee\u3067\u3001\u305f\u3068\u3048\u3070\u300c\u7532\u5730\u3092\u898b\u3088\u300d\u3068\u66f8\u3044\u305f\u3082\u306e\u3092\u4ee3\u5165\u3055\u308c\u305f\u3088\u3046\u306a\u3082\u306e\u3060\u3002
\u305d\u306e\u4e0a\u3067mmi\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u5f15\u6570\u3068\u3057\u3066\u6e21\u3057\u305f\u3002\u5024\u6e21\u3057\u306a\u306e\u3067\u30b3\u30d4\u30fc\u3055\u308c\u308b\u3068\u8a00\u3063\u305f\u3002
\u3057\u304b\u3057\u30b3\u30d4\u30fc\u3055\u308c\u305f\u306e\u306f\u3001\u300c\u7532\u5730\u3092\u898b\u3088\u300d\u3068\u3044\u3046\u3053\u3068\u3060\u3051\u3002
\u3060\u304b\u3089\u3082\u3057\u3053\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u4e2d\u3067\u305d\u306e\u4eee\u5909\u6570v0\u306e\u4e2d\u8eab\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u5168\u304f\u65b0\u3057\u3044\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4ee3\u5165\u3057\u3066\u3001
\u305f\u3068\u3048\u3070v0\u304c\u300c\u4e59\u5730\u3092\u898b\u3088\u300d\u306b\u5909\u308f\u3063\u305f\u3068\u3057\u3066\u3082\u3001\u5024\u6e21\u3057\u3060\u304b\u3089\u3001\u5f15\u6570\u306b\u66f8\u3044\u305fmi\u306b\u306f\u53cd\u6620\u3055\u308c\u306a\u3044\u3002
\u3051\u3069\u4eca\u56de\u306f\u305d\u3093\u306a\u3053\u3068\u305b\u305a\u3001\u305d\u306ev0\u3092\u305f\u3060v\u306b\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\u3002
\u3053\u3046\u306a\u308b\u3068\u3001mi\u3068v\u306f\u305d\u308c\u305e\u308c\u540c\u3058\u5834\u6240\u3092\u793a\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3088\u306d\u3002
\u305d\u306e\u4e0a\u3067\u3001v\u306eincl\u30e1\u30bd\u30c3\u30c9\u3092\u52d5\u304b\u3057\u307e\u3059\u3002\u3059\u308b\u3068\u3001v\u306e\u5185\u5bb9\u3060\u3051\u5909\u308f\u308a\u307e\u3059\u3002v\u306e\u5024\u306f\u5909\u308f\u308a\u307e\u305b\u3093!
\u305d\u306e\u4e0a\u3001v\u3082mi\u3082\u6307\u3057\u3066\u3044\u308b\u3053\u3068\u306f\u540c\u3058\u3002\u3060\u304b\u3089mi\u306e\u5024\u306f\u5909\u308f\u3063\u3066\u306a\u3044\u306e\u306b\u5185\u5bb9\u306f\u3055\u3063\u304d\u306e\u52d5\u4f5c\u3067\u5909\u308f\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u3002
\u305d\u306e\u7d50\u679c\u3001mi\u306e\u5185\u5bb9\u3092\u8868\u793a\u3055\u305b\u305f\u3089\u30011\u5897\u3048\u305f11\u306b\u306a\u3063\u3066\u305f\u308f\u3051\u3067\u3059\u3002\u306a\u308b\u307b\u3069\u3002
\u3082\u3057v\u306e\u5185\u5bb9\u3068mi\u306e\u5185\u5bb9\u3092\u7121\u95a2\u4fc2\u306b\u3057\u305f\u3051\u308c\u3070\u3001\u6539\u3081\u3066v\u306e\u5185\u5bb9\u3092\u4f5c\u3063\u3066\u3001mi\u3068\u540c\u3058\u5185\u5bb9\u3092\u30b3\u30d4\u30fc\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002
\u3053\u306e\u305f\u3081\u306b\u30b3\u30d4\u30fc\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u3044\u3046\u306e\u304c\u6b32\u3057\u304f\u306a\u308b\u308f\u3051\u304b\u3002
\u3055\u3066\u3001\u3053\u306e\u7279\u5fb4\u3092\u77e5\u3063\u305f\u3089\u3001foreach\u3067\u5185\u5bb9\u304c\u5909\u3048\u3089\u308c\u308b\u3088\u3046\u306a\u6c17\u304c\u3057\u3066\u304d\u307e\u3057\u305f\u3002
\u305d\u3053\u3067\u3053\u3093\u306a\u30af\u30e9\u30b9\u3092\u81ea\u4f5c\u3057\u307e\u3057\u305f\u3002\u5b8c\u74a7\u3058\u3083\u306a\u3044\u3051\u3069\u3042\u308b\u7a0b\u5ea6\u306f\u52d5\u304f\u3002<\/p>\n
class changeable<T> {
  private T _v;
  public changeable(T v0) { _v=v0; }
  public changeable(changeable<T> v0) { _v=v0._v; }
  public void change(T v0) { _v=v0; }
  public static implicit operator changeable<T>(T v0) { return new changeable<T>(v0); }
  public static implicit operator T(changeable<T> v0) { return v0._v; }
}<\/pre>\n
Nulltable\u69cb\u9020\u4f53\u3092\u53c2\u8003\u306b\u4f5c\u3063\u3066\u307f\u307e\u3057\u305f\u3002\u307e\u3041\u3053\u308c\u306f\u30af\u30e9\u30b9\u3067\u3059\u304c\u3002
\u3053\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306echange\u30e1\u30bd\u30c3\u30c9\u3067\u4e2d\u8eab\u3092\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002
\u3068\u3044\u3046\u3082\u306e\u306a\u306e\u3060\u304c\u3001\u3053\u308c\u304c\u3069\u3046\u6709\u7528\u304b\u306f\u898b\u3066\u6b32\u3057\u3044\u3002<\/p>\n
changeable<string>[] strs=new changeable<string>[] { "ABC", "DEF", "GHI" };
foreach (changeable<string> cstr in strs) { cstr.change(cstr+"!"); }
foreach (string nstr in strs) { Console.WriteLine(nstr); }<\/pre>\n
\u7121\u7406\u77e2\u7406\u4e00\u884c\u3067\u66f8\u3044\u305f\u304b\u3089\u8aad\u307f\u306b\u304f\u3044\u306d\u3002
\u3067\u3001changeable<T>\u306e\u914d\u5217\u3092\u4f5c\u308a\u307e\u3057\u305f\u3002T\u304b\u3089changeable<T>\u306b\u306f\u6697\u9ed9\u7684\u306b\u5909\u63db\u3055\u308c\u308b\u306e\u3067\u3053\u308c\u3067\u3044\u3044\u3067\u3059\u3002
\u3053\u306e\u4e0a\u3067\u3001foreach\u30671\u3064\u3065\u3064\u56de\u3057\u3066\u3082\u3089\u3046\u3002
foreach\u5185\u3067\u305d\u306e\u4eee\u5909\u6570\u306b\u4ee3\u5165\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u8a31\u3055\u308c\u306a\u3044\u3002\u307e\u3041\u610f\u5473\u306a\u3044\u304b\u3089\u306d\u3002
\u666e\u901a\u306estring\u306e\u914d\u5217\u306f\u3001\u300c\u7532\u5730\u3092\u898b\u3088\u300d\u306a\u3069\u304c\u3044\u304f\u3064\u304b\u5165\u3063\u3066\u3044\u3066\u3001
foreach\u3067\u306f\u6bce\u5ea6\u3001\u300c\u7532\u5730\u3092\u898b\u3088\u300d\u3068\u3044\u3046\u3088\u3046\u306a\u3053\u3068\u3092\u4eee\u5909\u6570\u306b\u5165\u308c\u3066\u56de\u3057\u3066\u304f\u308c\u308b\u3002
\u3060\u304b\u3089\u5185\u5bb9\u3092\u8aad\u3080\u3053\u3068\u306f\u81ea\u7531\u81ea\u5728\u3060\u3002\u3060\u3051\u3069\u3001\u4eee\u5909\u6570\u3092\u5909\u3048\u3066\u3082\u610f\u5473\u306f\u306a\u3044\u306d\u3002
\u305d\u3053\u3067\u3001\u3053\u306e\u300c\u7532\u5730\u3092\u898b\u3088\u300d\u3068\u3044\u3046\u3082\u306e\u3092\u53ce\u7d0d\u3057\u305fchangeable<T>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u914d\u5217\u3002
\u305d\u3053\u306b\u306f\u5225\u306e\u300c\u4e59\u5730\u3092\u898b\u3088\u300d\u306a\u3069\u304c\u66f8\u3044\u3066\u3042\u3063\u3066\u3001\u3053\u308c\u3092\u6bce\u5ea6\u56de\u3057\u3066\u304f\u308c\u308b\u3002
\u305d\u306e\u4e0a\u3067\u3001\u4e59\u5730\u3092\u898b\u3066\u3001\u4e59\u5730\u306b\u66f8\u3044\u3066\u3042\u308b\u3001\u300c\u7532\u5730\u3092\u898b\u3088\u300d\u3092\u300c\u4e19\u5730\u3092\u898b\u3088\u300d\u306b\u66f8\u304d\u63db\u3048\u305f\u3068\u3059\u308b\u3002
\u3053\u308c\u304cchange\u30e1\u30bd\u30c3\u30c9\u3002\u78ba\u304b\u306b\u3053\u308c\u306f\u554f\u984c\u3058\u3083\u306a\u3044\u3002\u3060\u3063\u3066\u4eee\u5909\u6570\u306f\u5909\u3048\u3066\u306a\u3044\u304b\u3089\u3002
\u305d\u308c\u3067\u3053\u306eforeach\u306e\u30eb\u30fc\u30d7\u304c\u7d42\u308f\u3063\u305f\u5f8c\u3001\u56de\u3057\u305f\u914d\u5217\u3001\u4eca\u56de\u306a\u3089strs\u3092\u6539\u3081\u3066\u89b3\u5bdf\u3059\u308b\u3002
\u5f53\u7136\u3060\u3051\u3069\u3001\u300c\u4e59\u5730\u3092\u898b\u3088\u300d\u306a\u3069\u3068\u66f8\u3044\u3066\u3042\u308b\u306e\u306f\u5909\u308f\u3063\u3066\u306a\u3044\u3002
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