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Tryit: JAVASCRIPT
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<!DOCTYPE html> <html> <body> <p>在输入字段中输入 Banana、Orange 或 Apple，然后单击按钮。</p> <p>switch 语句将根据您的输入执行一段代码。</p> <input id="myInput" type="text"> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var text; var fruits = document.getElementById("myInput").value; switch(fruits) { case "Banana": text = "香蕉很好！"; break; case "Orange": text = "我不喜欢橘子。"; break; case "Apple": text = "你喜欢它们吗？"; break; default: text = "没听说过这种水果..."; } document.getElementById("demo").innerHTML = text; } </script> </body> </html>