源代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Wfuyu教程(wfuyu.com)</title> </head> <body> <p id="demo">单击按钮显示今天周几</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var d = new Date(); var weekday=new Array(7); weekday[0]="Sunday"; weekday[1]="Monday"; weekday[2]="Tuesday"; weekday[3]="Wednesday"; weekday[4]="Thursday"; weekday[5]="Friday"; weekday[6]="Saturday"; var x = document.getElementById("demo"); x.innerHTML=weekday[d.getDay()]; } </script> </body> </html>
运行结果：