fix:默认时间单位修改

src/modules/course-manage/components/CreateWorkWXCourse.jsx

@@ -41,7 +41,7 @@ const defaultBasicInfo = {
 const defaultClassInfo = {
 const defaultClassInfo = {
   teacherId: null, //讲师的Id
   teacherId: null, //讲师的Id
   courseName: '', //课程名称
   courseName: '', //课程名称
-  duration: 3600000, //直播时长默认1小时
+  duration: 3600, //直播时长默认1小时
   remindTime: 0,  //提醒时间
   remindTime: 0,  //提醒时间
   startTime: new Date().getTime() + 300000,
   startTime: new Date().getTime() + 300000,
 };
 };