JSON练习

JSON练习：

var dataString='{"teachers":[{"name":"黄波","course":"网页高级设计"},{"name":"贺敏","course":"Java程序设计"},{"name":"毛丽娟","course":"JavaScript程序设计"}],"students":[{"name":"张三","age":20},{"name":"李四","age":21},{"name":"王五","age":19}]}';把王五这个值取出来

<script>
var dataString='{"teachers":[{"name":"黄波","course":"网页高级设计"},{"name":"贺敏","course":"Java程序设计"},{"name":"毛丽娟","course":"JavaScript程序设计"}],"students":[{"name":"张三","age":20},{"name":"李四","age":21},{"name":"王五","age":19}]}';
var data=JSON.parse(dataString);
// alert(data);    //[object object] 说明反序列化成功
// alert(data.students[2].name);//王五

for(var i=0;i<data.students.length;i++)
{
alert(data.students[i].name);
}
</script>