<div id="divId" class="divClass">测试文字</div>
<script src="js/jquery-1.7.js"></script>
<script type="text/javascript">
var text1 = $('.divClass').text(); //class选择器$('.divClass')
var text2 = $('#divId').text(); //id选择器$('#divId')
console.log(text1);
console.log(text2);
</script>