http://blog.csdn.net/dengxu11/article/details/6632155
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- class Program
- {
- ///
- ///
- ///
- /// 待处理的字符串
- /// 要替换的字符串中的子串
- /// 用来替换toRep字符串的字符串
- /// 返回一个结果字符串
- public static string StringReplace(string str, string toRep, string strRep)
- {
- StringBuilder sb = new StringBuilder();
- int subIndex = 0, indexStrRep = 0;
- for (; ; )
- {
- /* The string which will be replace delimiter */
- string str_tmp = str.Substring(subIndex);
- /* Get the first index of string which will be occurrence. */
- indexStrRep = str_tmp.IndexOf(toRep);
- /* Equas no character to replace*/
- if (indexStrRep == -1)
- {
- sb.Append(str_tmp);
- break;
- }
- else
- {
- /* insert the sub string to SB */
- sb.Append(str_tmp.Substring(0, indexStrRep));
- if (subIndex != str.Length - 2)
- {
- /* insert the delimiter "strRep" to SB */
- sb.Append(strRep);
- }
- subIndex += indexStrRep + toRep.Length;
- }
- }
- return sb.ToString();
- }
-
- ///
- /// 测试用例:"dwdawdyesdwjdao dyesj yes dwjaodjawiodayes djwaiodyesjijw"
- ///
- ///
- static void Main(string[] args)
- {
- string str = "1|2+|3|4|5|";
- Console.WriteLine(str);
- str = StringReplace(str, "|", ",");
- Console.WriteLine(str);
- Console.ReadKey();
- }
- }
