xxxxxxxxxx<html><head> <meta charset="utf-8"> <title>W3Cschool教程(w3cschool.cn)</title> </head><body><p>本例调用的函数会执行一个计算，然后返回结果：</p><p id="demo"></p><script>function myFunction(a,b){ return a*b;}document.getElementById("demo").innerHTML=myFunction(4,3);</script></body></html>