fix

zhongzheng-system/src/main/resources/mapper/modules/grade/ClassGradeMapper.xml

@@ -1356,7 +1356,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             ) >0
         </if>
         <if test="classStatus != null and  classStatus==0">
-            AND (g.class_status =  #{classStatus} or g.class_status =  is null )
+            AND (g.class_status =  #{classStatus} or g.class_status  is null )
         </if>
         <if test="classStatus != null and  classStatus==1">
             AND g.class_status =  1 and g.class_end_time >= unix_timestamp(now())
@@ -1445,7 +1445,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             ) >0)
         </if>
         <if test="classStatus != null and  classStatus==0">
-            AND (g.class_status =  #{classStatus} or g.class_status =  is null )
+            AND (g.class_status =  #{classStatus} or g.class_status   is null )
         </if>
         <if test="classStatus != null and  classStatus==1">
             AND g.class_status =  1 and g.class_end_time >= unix_timestamp(now())