SQL语句错误: select * from wkcx_class where id= 错误信息: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 西安CAD培训_室内设计培训_装饰设计培训_3D培训_办公软件培训_办公自动化培训_UG培训_SolidWorks培训_计算机培训_平面设计培训--