使用Regex正则表达式替换.txt文本文件中指定的词

 1         /// <summary>
 2         /// 替换文本文件中的词
 3         /// </summary>
 4         /// <param name="filePath"></param>
 5         /// <param name="oldWord"></param>
 6         /// <param name="newWord"></param>
 7         public static void ReplaceWordInTxt(string fliePath, string oldWord, string newWord)
 8         {
 9             string target = File.ReadAllText(fliePath);
10             var strFile = Regex.Replace(target, @"\b" + oldWord + @"\b", newWord);
11             File.WriteAllText(fliePath, strFile);
12         }