// 分别选择所有语言，所有动态语言，所有静态语言，JavaScript，Lua，C等:
/*
selected = $('.test-selector li');
selected = $('ul.test-lang li');
selected = $('ol.test-lang li');
selected = $('.lang-javascript');
selected = $('ul.test-lang li:last-child');
*/
selected = $('ol.test-lang>li.lang-c');