1 /// <summary>
2 /// 截取指定长度字符串
3 /// </summary>
4 /// <param name="inputString">要处理的字符串</param>
5 /// <param name="len">指定长度</param>
6 /// <returns>返回处理后的字符串</returns>
7 public static string ClipString(string inputString, int len)
8 {
9 bool isShowFix = false;
10 if (len % 2 == 1)
11 {
12 isShowFix = true;
13 len--;
14 }
15 System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();
16 int tempLen = 0;
17 string tempString = "";
18 byte[] s = ascii.GetBytes(inputString);
19 for (int i = 0; i < s.Length; i++)
20 {
21 if ((int)s[i] == 63)
22 tempLen += 2;
23 else
24 tempLen += 1;
25
26 try
27 {
28 tempString += inputString.Substring(i, 1);
29 }
30 catch
31 {
32 break;
33 }
34
35 if (tempLen > len)
36 break;
37 }
38
39 byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);
40 if (isShowFix && mybyte.Length > len)
41 tempString += "…";
42 return tempString;
43 }
