增加乐器采购清单确认接口

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

@@ -81,6 +81,9 @@
             <if test="musicGroupId != null">
                 music_group_id_ = #{musicGroupId},
             </if>
+            <if test="paidStudentNum != null">
+                paid_student_num_ = #{paidStudentNum},
+            </if>
             <if test="version != null">
                 version = version+1,
             </if>