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<!DOCTYPE html>
<html>
<body>
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<h2>JavaScript setFullYear()</h2>
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<p>setFullYear() 方法可以选择设置月和日。</p>
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<p>请注意，月份从 0 计数。十二月是 11：</p>
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<p id="demo"></p>
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<script>
var d = new Date();
d.setFullYear(2020, 11, 3);
document.getElementById("demo").innerHTML = d;
</script>
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</body>
</html>
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