let's do it
选中的时候移除全部选中样式, 然后给它自己添加选中样式.
<ul id="midNav">
<li><a class="selected" ng-click="menuClick('teacher-info')" href="javascrpit:void(0);">简介</a></li>
<li><a ng-click="menuClick('course-catalog')" href="javascrpit:void(0);">目录</a></li>
<li><a ng-click="menuClick('course-note')" href="javascrpit:void(0);">笔记</a></li>
<li><a ng-click="menuClick('course-review')" href="javascrpit:void(0);">评论({{courseData.commentTime}})</a></li>
</ul>
$('#midNav li a').click(function() {
$('#midNav li a').removeClass('selected');
$(this).addClass('selected');
});
