在xml编写更改一条数据代码

<update id="接口的方法名" parameterType="类对象的路径">

//sql语句
    update video
    set title=#{title,jdbcType=VARCHAR},
        detail=#{detail,jdbcType=VARCHAR},
        cover_img=#{coverImg,jdbcType=VARCHAR},
        price=#{price,jdbcType=INTEGER},
        point=#{point,jdbcType=DOUBLE}
    where id = #{id}

</update>