<html><body><h1>JavaScript 运算符</h1><h2>... 运算符</h2><p>"展开" 运算符用于展开可迭代对象的元素：</p><p id="demo"></p><script>const cars1 = ["Saab", "Volvo", "BMW"];const cars2 = ["Fiat", "Toyota"];const combined = [cars1, cars2];document.getElementById("demo").innerHTML = combined; </script></body></html>