mysql总是报错 ERROR 1054 (42S22): Unknown column &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;dfds&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; in &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;field_7