数据看板，课表统计调整

src/main/java/com/xjrsoft/module/databoard/controller/DataboardController.java

@@ -146,7 +146,7 @@ public class DataboardController {
         result.setAllCount(list.size());
         int teacherCount = 0, noTeacherCount = 0;
         for (CourseTable courseTable : list) {
-            if(courseTable.getTimePeriod() != null && "0".equals(courseTable.getTeacherId())){
+            if(courseTable.getTeacherId() != null && !"0".equals(courseTable.getTeacherId())){
                 teacherCount ++;
             }else{
                 noTeacherCount ++;