asp.net 半角全角转化工具

  /// <summary>

  /// 转全角的函数(SBC case)

  /// </summary>

  /// <param name="input">任意字符串</param>

  /// <returns>全角字符串</returns>

  ///<remarks>

  ///全角空格为12288,半角空格为32

  ///其他字符半角(33-126)与全角(65281-65374)的对应关系是:均相差65248

  ///</remarks>

  public string ToSBC(string input)

  {

  //半角转全角:

  char[] c = input.ToCharArray();

  for (int i = 0; i < c.Length; i++)

  {

  if (c[i] == 32)

  {

  c[i] = (char) 12288;

  continue;

  }

  if (c[i] < 127)

  c[i] = (char) (c[i] + 65248);

  }

  return new string(c);

  }

  /// <summary>

  /// 转半角的函数(DBC case)

  /// </summary>

  /// <param name="input">任意字符串</param>

  /// <returns>半角字符串</returns>

  ///<remarks>

  ///全角空格为12288,半角空格为32

  ///其他字符半角(33-126)与全角(65281-65374)的对应关系是:均相差65248

  ///</remarks>

  public string ToDBC(string input)

  {

  char[] c = input.ToCharArray();

  for (int i = 0; i < c.Length; i++)

  {

  if (c[i] == 12288)

  {

  c[i] = (char) 32;

  continue;

  }

  if (c[i] > 65280 && c[i] < 65375)

  c[i] = (char) (c[i] - 65248);

  }

  return new string(c);

  }