json五种类型学习
在html文件中就可以，不用引入其他的链接，直接就能用：下面是案例1-5，想练习哪个把哪个注释去掉就可以，
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>json01</title>
</head>
<body>
<ul>
<li id="bj" name="bj">背景</li>
</ul>
</body>
<script type="text/javascript">
// 案例一:对象格式
/* var person = {"firstname":"zhangsan","lastname":"sanfang","age":"100"};
alert(person.lastname);
alert(person.age) */
//-------------------
//案例二: 数组集合格式
/* var person = [
{"name":"zhangsan","age":"26"},
{"name":"lisi","age":"28"},
{"name":"wangwu","age":"29"}
]
alert(person[0].name);
alert(person[1].age); */
//-----------------------
//案例三:对象格式里面嵌套数组格式,里面再嵌套对象格式
/* var person = {
"date":[
{"name":"aaa","age":"22"},
{"name1":"bbb","age1":"20"},
{"name":"ccc","age":"21"}
]
}
alert(person.date[0].name);
alert(person.date[1].age1);
alert(person.date[2].name); */
//-----------------------------
//案例四:对象里面放多个数组,每个数组里面再放对象
/* var person = {
date1:[
{"name1":"lilili","age1":"19"},
{"name2":"wwwwww","age2":"18"}
],
date2:[
{"name3":"ererer","age3":"33"},
{"name4":"444444","age4":"44"}
]
}
alert(person.date1[1].name2);
alert(person.date2[0].age3); */
//-----------------------
//案例五：{
/* "param1":"value1",
* "param2":{},
* "param3":[{key:value,key:value},{key:value,key:value}]
* }
*/
var person = {
"param1":"val1",
"param2":{"name1":"zhangsan","age1":"22"},
"param3":[
{"name2":"zhang","age2":"13"},
{"name3":"lilii","age3":"14"}
]
}
alert(person.param1);
alert(person.param2.name1);
alert(person.param3[1].age3);
</script>
</html>
