update 乐器更换，更新乐保信息

mec-biz/src/main/resources/config/mybatis/StudentInstrumentMapper.xml

@@ -94,7 +94,7 @@
             <if test="delFlag != null">
                 del_flag_ = #{delFlag},
             </if>
-            update_time = #{updateTime},
+            update_time = NOW(),
         </set>
         where id_ = #{id}
     </update>