handlePageChange('prev')" :class="['el-icon-arrow-left', params.page===1&&'is-hidden']">
getCourseTask(item.courseid, item.coursetype, index, item.isavail)"
:class="['lesson-item', index===activeIndex&&'is-active']"
v-for="(item, index) in lessonList"
:key="index"
>
updateCourseListIstop(item.courseid, item.istop?0:1)" class="lesson-item__is-top">
{{ item.istop ? '取消置顶' : '置顶' }}
{{ item.subject }}
handlePageChange('next')" :class="['el-icon-arrow-right', (params.page*params.pageSize>=total||total<4)&&'is-hidden']">