C#輸入法全半角轉換

/**//// 

        /// 轉全角的函數(SBC case)

        /// 

        /// 任意字元串

        /// 全角字元串

        ///

        ///全角空格為12288，半角空格為32 ///其他字元半角(33-126)與全角(65281-65374)的對應關系是：均相差65248

        ///        

        public string ToSBC(string input)

        {

            //半角轉全角：

            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);                

        }

        /**//// 

        /// 轉半角的函數(DBC case)

        /// 半角字元串

        ///全角空格為12288，半角空格為32

        ///其他字元半角(33-126)與全角(65281-65374)的對應關系是：均相差65248

        public string ToDBC(string input)

        {    

                if (c[i]==12288)

                    c[i]= (char)32;

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

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

            }    

            return new string(c);