判斷當前選擇哪個li標籤
阿新 • • 發佈：2019-01-25
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title> 演示程式碼 </title> <script> onload = function() { var lis = document.getElementsByTagName("li"); var funny = function(i){ lis[i].onclick = function(){ alert("第" + (i+1) + "個"); } } for(var i=0;i<lis.length;i++){ funny(i); } } </script> </head> <body> <ul> <li> 1 </li> <li> 2 </li> <li> 3 </li> <li> 4 </li> </ul> </body> </html>