如何使用Regex.Replace一次替换两个字符串？

Question

我有以下方法从文件名替换"磅"符号,但我也希望能够同时替换"单撇号".我该怎么做？这是filename = Provider license_A'R_Ab#acus Settlements_1-11-09.xls的值

static string removeBadCharPound(string filename)
{            // Replace invalid characters with "_" char.            
    //I want something like this but is NOT working 
    //return Regex.Replace(filename, "# ' ", "_");
    return Regex.Replace(filename, "#", "_");
 }

Answer 1

尝试

return Regex.Replace(filename, "[#']", "_");

请注意,我不确定正则表达式可能比更简单的更快:

return filename.Replace('#', '_')
               .Replace('\'', '_');

Answer 2

只是为了好玩,你可以用LINQ完成同样的事情:

var result = from c in fileName
             select (c == '\'' || c == '#') ? '_' : c;
return new string(result.ToArray());

或者,压缩成性感的单行:

return new string(fileName.Select(c => c == '\'' || c == '#' ? '_' : c).ToArray())