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<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
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<h2>JavaScript Math.random()</h2>

<p>点击按钮, getRndInteger(min, max) 会返回 0（包含）到 10（不包含）到数字:</p>

<button onclick="document.getElementById('demo').innerHTML = getRndInteger(0,10)">点我</button>

<p id="demo"></p>

<script>
function getRndInteger(min, max) {
  return Math.floor(Math.random() * (max - min)) + min;
}
</script>

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