p70
https://www.w3school.com.cn/jsref/dom_obj_event.asp
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <script type="text/javascript"> window.onload=function(){ var oDiv = document.getElementsByTagName("div")[0]; oDiv.addEventListener("click",myFunction); function myFunction(){ alert(‘a‘) } } </script> </head> <body> <div style="width: 200px; height: 200px; background-color: antiquewhite;">div</div> </body> </html>
原文：https://www.cnblogs.com/chengzizhou/p/12653840.html