转全角半角

 

 1        /**//// <summary>
 2        /// 转全角的函数(SBC case)
 3        /// </summary>
 4        /// <param name="input">任意字符串</param>
 5        /// <returns>全角字符串</returns>
 6        ///<remarks>
 7        ///全角空格为12288，半角空格为32
 8        ///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
 9        ///</remarks>        
10        public string ToSBC(string input)
11        {
12            //半角转全角：
13            char[] c=input.ToCharArray();
14            for (int i = 0; i < c.Length; i++)
15            {
16                if (c[i]==32)
17                {
18                    c[i]=(char)12288;
19                    continue;
20                }
21                if (c[i]<127)
22                    c[i]=(char)(c[i]+65248);
23            }
24            return new string(c);                
25        }
26
27
28        /**//// <summary>
29        /// 转半角的函数(DBC case)
30        /// </summary>
31        /// <param name="input">任意字符串</param>
32        /// <returns>半角字符串</returns>
33        ///<remarks>
34        ///全角空格为12288，半角空格为32
35        ///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
36        ///</remarks>
37        public string ToDBC(string input)
38        {    
39            char[] c=input.ToCharArray();
40            for (int i = 0; i < c.Length; i++)
41            {
42                if (c[i]==12288)
43                {
44                    c[i]= (char)32;
45                    continue;
46                }
47                if (c[i]>65280 && c[i]<65375)
48                    c[i]=(char)(c[i]-65248);
49            }    
50            return new string(c);
51        }