json数据格式学习

参考
json是JavaScript的对象表示法，一个轻量的文本数据交换格式，比较容易理解。json的形式可以是数值，可以是字符串，可以是数组，对象，对象数组，数组对象。

//数值
{ 
"key1":"100",
"key2":"200"}
//字符串
{
"key1":"zhangsan"
"key2:"大忽悠"
}
//json数组
{
"key":[100,312],
"key":[1231,3412]
}
//json对象
{
"key":{"1":"亚索"},
"key1":{"2":"刘备"}}
}
//json对象数组
{
"我":[
{"key":"好好学习"}，
{"key1":"天天向上"}
]

}

//json数组对象
{
"我":{
"你"：[12312,2312]
}
}

下面是一个比较长的实例：

{
    "cm":{
        "ln":"-55.0",
        "sv":"V2.9.6",
        "os":"8.0.4",
        "g":"C6816QZ0@gmail.com",
        "mid":"489",
        "nw":"3G",
        "l":"es",
        "vc":"4",
        "hw":"640*960",
        "ar":"MX",
        "uid":"489",
        "t":"1593123253541",
        "la":"5.2",
        "md":"sumsung-18",
        "vn":"1.3.4",
        "ba":"Sumsung",
        "sr":"I"
    },
    "ap":"app",
    "et":[
        {
            "ett":"1593050051366",
            "en":"loading",
            "kv":{
                "extend2":"",
                "loading_time":"14",
                "action":"3",
                "extend1":"",
                "type":"2",
                "type1":"201",
                "loading_way":"1"
            }
        },
        {
            "ett":"1593108791764",
            "en":"ad",
            "kv":{
                "activityId":"1",
                "displayMills":"78522",
                "entry":"1",
                "action":"1",
                "contentType":"0"
            }
        },
        {
            "ett":"1593111271266",
            "en":"notification",
            "kv":{
                "ap_time":"1593097087883",
                "action":"1",
                "type":"1",
                "content":""
            }
        },
        {
            "ett":"1593066033562",
            "en":"active_background",
            "kv":{
                "active_source":"3"
            }
        },
        {
            "ett":"1593135644347",
            "en":"comment",
            "kv":{
                "p_comment_id":1,
                "addtime":"1593097573725",
                "praise_count":973,
                "other_id":5,
                "comment_id":9,
                "reply_count":40,
                "userid":7,
                "content":"辑赤蹲慰鸽抿肘捎"
            }
        }
    ],
    "id":"1593136280858"
//有个疑问，这里有些数据用了""有些没有，区别又在哪里呢
这个后面得问一下


}

怎么说呢，还是得到具体的情况里面去实际写一下json，才算是真正会用这种格式。