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<!DOCTYPE html> <html> <body> <p>扩展运算符常用于从数组中提取所需的内容：</p> <p id="demo"></p> <p id="demo2"></p> <p id="demo3"></p> <script> const numbers = [1, 2, 3, 4, 5, 6]; const [one, two, ...rest] = numbers; document.getElementById("demo").innerHTML = one; document.getElementById("demo2").innerHTML = two; document.getElementById("demo3").innerHTML = rest; </script> </body> </html>