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這個(gè)形參e怎么理解?是把點(diǎn)擊這個(gè)動(dòng)作傳給了e嗎?求大神指教!??!

這個(gè)形參e怎么理解?是把點(diǎn)擊這個(gè)動(dòng)作傳給了e嗎?求大神指教!??!

<html> <head> <title>取消<a>標(biāo)簽的默認(rèn)動(dòng)作</title> </head> <body> <a?id="demo"?>點(diǎn)擊這里試試</a> <script?type="text/javascript"> document.getElementById("demo").onclick=function(e){ var?eve?=?e?||?window.event; try{??//?使用?try...catch?語句避免瀏覽器出現(xiàn)錯(cuò)誤提示 eve.preventDefault();??//?非?IE?瀏覽器 }catch(e){ eve.returnValue?=?false;??//?IE8.0?及其以下版本 } } </script> </body> </html>
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杰杰就是我

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形參e的意思 是 ?當(dāng)你點(diǎn)擊的時(shí)候會(huì)發(fā)生一個(gè)事件, ?而這個(gè)事件的所有東西都在e中 ? , ?e就是event的簡寫, ?也可以寫成event?

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反對(duì) 回復(fù) 2016-12-22
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反對(duì) 回復(fù) 2021-10-19
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