简单教程
提交运行
代码编辑器：
<p id="demo">单击按钮显示给定时间中一周的某天（UTC）</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var d=new Date(); var weekday=new Array(7); weekday[0]="周日"; weekday[1]="周一"; weekday[2]="周二"; weekday[3]="周三"; weekday[4]="周四"; weekday[5]="周五"; weekday[6]="周六"; var x = document.getElementById("demo"); x.innerHTML=weekday[d.getUTCDay()]; } </script> <p><strong>注意:</strong> 0=周日, 1=周一, 类推</p>
运行结果：