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Tryit: JAVASCRIPT
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<!DOCTYPE html> <html> <body> <p>单击下面的按钮。 输入字段会告诉您两秒、四秒和六秒的时间。</p> <button onclick="timedText()">Display timed text</button> <input type="text" id="txt"> <script> function timedText() { var x = document.getElementById("txt"); setTimeout(function(){ x.value="2 seconds" }, 2000); setTimeout(function(){ x.value="4 seconds" }, 4000); setTimeout(function(){ x.value="6 seconds" }, 6000); } </script> </body> </html>