C# 通过正则表达式保留指定的字符串信息
string ddd = "萨芬啊手动阀 asdfas--_asd fasf \r\n,ss,s。s.s‘dd’d·d`d%%##";
var dss = Regex.Replace(ddd, @"[^a-zA-Z0-9\u4e00-\u9fa5-_,,。.‘’·`!!@#$%^&*()]+","");
string ddd = "萨芬啊手动阀 asdfas--_asd fasf \r\n,ss,s。s.s‘dd’d·d`d%%##";
var dss = Regex.Replace(ddd, @"[^a-zA-Z0-9\u4e00-\u9fa5-_,,。.‘’·`!!@#$%^&*()]+","");