​x
 
<!DOCTYPE html>
<html>
<body>
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<h1>JavaScript 对象</h1>
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<p>JavaScript 使用名称来访问对象属性。</p>
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<p id="demo"></p>
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<script>
var person = {firstName:"Bill", lastName:"Gates", age:62};
document.getElementById("demo").innerHTML = person["firstName"];
</script>
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</body>
</html>
​
​
​