<!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>Title</title> <script type="text/javascript"> window.onload = function () { var links = document.getElementsByTagName("a"); for(var i=0 ; i<links.length ; i++){ links[i].onclick = function () { //問(wèn)題：點(diǎn)擊哪個(gè)超鏈接就彈出哪個(gè)超鏈接的索引 alert(i); }; } }; </script></head><body><ul> <li><a href="javascript:;">超鏈接一</a></li> <li><a href="javascript:;">超鏈接二</a></li> <li><a href="javascript:;">超鏈接三</a></li> <li><a href="javascript:;">超鏈接四</a></li></ul></body></html>怎么運(yùn)用閉包解決點(diǎn)擊點(diǎn)擊哪個(gè)超鏈接就彈出哪個(gè)超鏈接的索引？
JS閉包的一個(gè)問(wèn)題
開(kāi)滿天機(jī)
2018-11-22 14:15:34