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<!DOCTYPE html> <html> <body> <h2>JavaScript Math.random()</h2> <p>每次单击按钮时，getRndInteger(min, max) 返回一个介于 0 和 9 之间的随机数（均包含在内）：</p> <button onclick="document.getElementById('demo').innerHTML = getRndInteger(0,10)">点击这里</button> <p id="demo"></p> <script> function getRndInteger(min, max) { return Math.floor(Math.random() * (max - min)) + min; } </script> </body> </html>