AS3原生JSON输出字符串描述时的格式化

记录一下，一般使用JSON序列化一个对象成字符串描述时都比较难于阅读，特别是大量且复杂的数据时，如：

var s:String = '{"title":"Adobe Flash 11 Stage3D (Molehill)Game Programming","authors":["Christer Kaitila"],"edition":1,"year":2011}';
var o:Object = JSON.parse(s);
trace(JSON.stringify(o));

得到：

{"title":"Adobe Flash 11 Stage3D (Molehill)Game Programming","year":2011,"edition":1,"authors":["Christer Kaitila"]}

我们可以操作第3个参数实现格式化一般可以用下面的两者写法：

var s:String = '{"title":"Adobe Flash 11 Stage3D (Molehill)Game Programming","authors":["Christer Kaitila"],"edition":1,"year":2011}';
var o:Object = JSON.parse(s);
trace(JSON.stringify(o, null, "\t"));

得到：

{
    "title": "Adobe Flash 11 Stage3D (Molehill)Game Programming",
    "year": 2011,
    "edition": 1,
    "authors": [
        "Christer Kaitila"
    ]
}

或者：

var s:String = '{"title":"Adobe Flash 11 Stage3D (Molehill)Game Programming","authors":["Christer Kaitila"],"edition":1,"year":2011}';
var o:Object = JSON.parse(s);
trace(JSON.stringify(o, null, 4));

得到：

{
    "title": "Adobe Flash 11 Stage3D (Molehill)Game Programming",
    "year": 2011,
    "edition": 1,
    "authors": [
        "Christer Kaitila"
    ]
}

更多参考：http://help.adobe.com/zh_CN/as3/dev/WS324d8efcab3b0d1e2408f9e3131fddffcfc-8000.html#WSf3d65dd2c930a82b43322d12132a75d91da-8000