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<!DOCTYPE html> <html> <body> <p>点击 Start 按钮，2 秒后输出“Hello”。</p> <p>在此示例中，我们还输出传递给 alertFunc() 函数的参数（在 IE9 和更早版本中不起作用）。</p> <button onclick="myStartFunction()">开始</button> <p id="demo"></p> <p id="demo2" style="color:red;"></p> <script> var myVar; function myStartFunction() { myVar = setTimeout(alertFunc, 2000, "First parameter", "Second parameter"); } function alertFunc(param1, param2) { document.getElementById("demo").innerHTML += "Hello "; document.getElementById("demo2").innerHTML = "传递给 alertFunc() 的参数：<br>" + param1 + "<br>" + param2 + "<br>"; } </script> </body> </html>