试一下 markdown 代码块
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string connSting ="server=xxx;Database='xxx';User='xxx';
Password='xxx';charset='utf8mb4';pooling=false;SslMode=none";
MySqlConnection conn = DAL.MySqlHelper.GetConnection(connSting);
StringBuilder sbr = new StringBuilder();
//sbr.Append("SELECT Check('abcdefg' , '12345678');");
sbr.Append("SELECT Check('abcdefg' , '12345678');");

MySqlParameter[] parameters = {
new MySqlParameter("@aaa", aaa),
new MySqlParameter("@bbb", bbb) };

string cmdText = sbr.ToString();
DataTable dt = DAL.MySqlHelper.GetDataTable(connSting, CommandType.Text, cmdText, parameters);
Console.WriteLine("输出"+dt.Rows[0][0].ToString());
···