.net 去除特殊字符

str = Regex.Replace(str, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);

//str为需要校验的字符

str = Regex.Replace(str, @"[~`@#$%^&\*()_\+{}\|<>\/\\\[\]]", "", RegexOptions.IgnoreCase);

//删除与数据库相关的词
str= Regex.Replace(str, "select", "", RegexOptions.IgnoreCase);