修复课程表日期显示的bug

lib/screen/course_screen.dart

@@ -35,21 +35,10 @@ class CourseScreenState extends State<CourseScreen> {
       mondayTime = mondayTime.subtract(Duration(days: 1));
     }
 
-    mondayTime.year; //2020 年
-    mondayTime.month; //6(这里和js中的月份有区别，js中是从0开始，dart则从1开始，我们无需再进行加一处理) 月
-    mondayTime.day; //6 日
-    // nowTime.hour ;//6 时
-    // nowTime.minute ;//6 分
-    // nowTime.second ;//6 秒
     for (int i = 0; i < 7; i++) {
-      dateList.add("${mondayTime.month}/${mondayTime.day + i}");
-      if ((mondayTime.day + i) == DateTime.now().day) {
-        setState(() {
-          currentWeekIndex = i + 1;
-        });
-      }
+      dateList.add("${mondayTime.month}-${mondayTime.day}");
+      mondayTime = mondayTime.add(Duration(days: 1));
     }
-    // print('Recent monday '+DateTime.now().day.toString());
   }
 
   @override