accesskey属性，用于指定要激活元素或将焦点置于元素的快捷键。这可以使键盘用户的导航更有效。 HTML5允许在任何元素上使用此属性，但在与交互元素一起使用时，它特别有用。这包括链接，按钮和表单控件。这是一个例子： <button accesskey="b">Important Button</button> accesskey属性，并将第一个设置为“g”（对于加菲猫），将第二个设置为“c”（对于Chuck Norris）。 id为“first” a标记添加一个accesskey属性。
testString: 'assert($("#first").attr("accesskey"), "Your code should add an accesskey attribute to the a tag with the id of "first".");'
- text: 您的代码应该为id为“second” a标记添加一个accesskey属性。
testString: 'assert($("#second").attr("accesskey"), "Your code should add an accesskey attribute to the a tag with the id of "second".");'
- text: 您的代码应在id为“first”到“g” a标记上设置accesskey属性。请注意，案件很重要。
testString: 'assert($("#first").attr("accesskey") == "g", "Your code should set the accesskey attribute on the a tag with the id of "first" to "g". Note that case matters.");'
- text: 您的代码应设置accesskey的属性a标签与id “第二”到“C”的。请注意，案件很重要。
testString: 'assert($("#second").attr("accesskey") == "c", "Your code should set the accesskey attribute on the a tag with the id of "second" to "c". Note that case matters.");'
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