{
"name":"Python学习者",
"age":20,
"course":["Java","Python"],
"job":null,
"url":"http://www.1sucai.cn"
}
<html>
<head>
<meta charset="utf-8">
<title>Pyhton学习者-JSON</title>
</head>
<body>
<p>使用" . "访问JSON对象</p>
<p id="demo1"></p>
<p>使用" [] "访问JSON对象</p>
<p id="demo2"></p>
<script>
var obj, name, age;
obj = {
"name":"Python学习者",
"age":20,
"course":["Java","Python"],
"job":null,
"url":"http://www.1sucai.cn"
}
name = obj.name;
document.getElementById("demo1").innerHTML = name;
age = obj["age"];
document.getElementById("demo2").innerHTML = age;
</script>
</body>
</html>
db.students.insert({"name" : "张三" , "sex" : "男" , "age" : 18 , "score" : 85 });
db.students.insert({"name" : "李四" , "sex" : "女" , "age" : 21 , "score" : 93 });
db.students.insert({"name" : "王五" , "sex" : "女" , "age" : 19 , "score" : 68 });
db.students.find("name":"张三");
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