​x
 
<!DOCTYPE html>
<html>
<body>
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<h2>JavaScript getDay()</h2>
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<p>getDay() 方法将周名作为数字返回：</p>
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<p>您可以使用数组来显示星期的名称：</p>
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<p id="demo"></p>
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<script>
var d = new Date();
var days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
document.getElementById("demo").innerHTML = days[d.getDay()];
</script>
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</body>
</html>
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