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<!DOCTYPE html>
<html>
<body>
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<h1>JavaScript 数组排序</h1>
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<p>请反复点击按钮，对数组进行随机排序。</p>
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<button onclick="myFunction()">试一试</button>
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<p id="demo"></p>
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<script>
var points = [40, 100, 1, 5, 25, 10];
document.getElementById("demo").innerHTML = points;  
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function myFunction() {
  points.sort(function(a, b){return 0.5 - Math.random()});
  document.getElementById("demo").innerHTML = points;
}
</script>
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</body>
</html>
​