C#基础-replace()过滤非法字符

 string FilterfileName(string strName)
 {
    string result=string.Empty ;
    if (string.IsNullOrWhiteSpace(strName))
    {
       //do something
    }
    else
    {
     result = strName.Replace("\\", "_").Replace("/", "_").Replace(":", "_")
              .Replace("*","_").Replace("?","_").Replace("<","_")
              .Replace(">","_").Replace("|","_").Replace("\"","_");
    }
    return result;
 }