javascript中声明数组格式的json数据和获取方法。

@javascript中声明一个字符串。(Json中一个key对应多个值(数组)的关系)
var txt = '{ "employees" : [' +
'{ "firstName":"Bill" , "lastName":"Gates" },' +
'{ "firstName":"George" , "lastName":"Bush" },' +
'{ "firstName":"Thomas" , "lastName":"Carter" } ]}';
----转换为json

var obj = eval ("(" + txt + ")");

----在网页中使用 JavaScript 对象(获取json格式的值)：

First Name: <span id="fname"></span><br />
Last Name: <span id="lname"></span><br />
</p>

<script type="text/javascript">
document.getElementById("fname").innerHTML = obj.employees[1].firstName
document.getElementById("lname").innerHTML = obj.employees[1].lastName
</script>