源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>享学课堂</title> </head> <body> <h1>JavaScript 函数</h1> <p>此示例调用一个函数，该函数执行计算并返回结果:</p> <p id="demo"></p> <script> function myFunction(a, b) { return a * b; } document.getElementById("demo").innerHTML = myFunction(4, 3); </script> </body> </html>
运行结果