C#全形半形轉換函式

從jyk的分頁代碼中取出來的一段代碼，做一個備忘

 

    #region 全形半形轉換
        /// <summary>
        /// 轉全形的函數(SBC case)
        /// </summary>
        /// <param name="input">任一字元串</param>
        /// <returns>全形字元串</returns>
        ///<remarks>
        ///全形空格為12288，半形空格為32
        ///其他字元半形(33-126)與全形(65281-65374)的對應關係是：均相差65248
        ///</remarks>
        public  static string ToSBC(string input)
        {
            //半形轉全形：
            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> 轉半形的函數(DBC case) </summary>
        /// <param name="input">任一字元串</param>
        /// <returns>半形字元串</returns>
        ///<remarks>
        ///全形空格為12288，半形空格為32
        ///其他字元半形(33-126)與全形(65281-65374)的對應關係是：均相差65248
        ///</remarks>
        public static 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);
        }
        #endregion