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<!DOCTYPE html> <html> <body> <h2>JavaScript 数组排序</h2> <p>单击该按钮可对数组进行降序排序。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> var points = [40, 100, 1, 5, 25, 10]; document.getElementById("demo").innerHTML = points; function myFunction() { points.sort(function(a, b){return b - a}); document.getElementById("demo").innerHTML = points; } </script> </body> </html>