主页
JS 参考手册
JavaScript switch 语句
tryjsref_state_switch
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <p>单击该按钮以显示今天是星期几。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var day; switch (new Date().getDay()) { case 0: day = "Sunday"; break; case 1: day = "Monday"; break; case 2: day = "Tuesday"; break; case 3: day = "Wednesday"; break; case 4: day = "Thursday"; break; case 5: day = "Friday"; break; case 6: day = "Saturday"; break; default: day = "Unknown Day"; } document.getElementById("demo").innerHTML = "Today is " + day; } </script> </body> </html>