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string connStr = String.Format("server={0};user id={1}; password={2}; database={3}; pooling=false;port=3306", "127.0.0.1", "test", "test", "test");
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string connecStr=“Database='testdb';Data Source='localhost';User Id='db';Password='apple';charset='utf8'”
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 MySqlConnection myConn = new MySqlConnection(connStr);
           myConn.Open();
           MySqlCommand cmd = myConn.CreateCommand();


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