<p>函数可作为一个值:</p> <p>x = myFunction(4,3) 或 x = 12</p> <p>两种情况下,x 的值都为 12。</p> <p id="demo"></p> <script> function myFunction(a, b) { return a * b; } var x = myFunction(4, 3); document.getElementById("demo").innerHTML = x; </script>