点击运行
<!DOCTYPE html> <html> <body> <h1>JavaScript 函数</h1> <p>JavaScript 有一个内置的函数构造函数。</p> <p id="demo"></p> <script> var myFunction = new Function("a", "b", "return a * b"); document.getElementById("demo").innerHTML = myFunction(4, 3); </script> </body> </html>
运行结果
