将 textword_about 更改为 textWord_about [请注意， W code> textWord_about ]

There is typo in your selector. Change textword_about to textWord_about [Note the letter W in textWord_about]

修正代码： http://jsfiddle.net/LUKGt/5/ （没有您的样式表）

Fixed Code: http://jsfiddle.net/LUKGt/5/ (without your stylesheets)

strong>代码：

Code:

$('.textWord_about').hide();

$('.link').click(function() {
    $('.textWord_about').hide();
    $('.textWord_about[data-link=' + $(this).data('link') + ']').fadeIn({
        width: '200px'
    }, 300);
});​