亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱

DOM實操作業(yè)

??? 2019-03-25 16:48:21 329
????:<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>對話前瞻</title></head><body><input type="text" name=&quo

<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<title>對話前瞻</title>

</head>

<body>

<input type="text" name="text">

<button>發(fā)送</button>

<ul></ul>

</body>

</html>

<script>

var input=document.getElementsByTagName('input')[0];

var button=document.getElementsByTagName('button')[0];

var ul=document.getElementsByTagName('ul')[0];


button.onclick=function(){

var li=document.createElement('li');

li.innerHTML=input.value;

ul.appendChild(li)

}

</script>


?? ???:查無此人?? ??:2019-03-26 09:24:17
???? ??:完成的不錯。剛開始接觸js,可能會比較辛苦。多練習就好了,繼續(xù)加油

??? ??

?? ??