abstract：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>全選邊框</title><style type="text/css">.box{width: 120px;height: 250px;border: 1px sol
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>全選邊框</title>
<style type="text/css">
.box{
width: 120px;
height: 250px;
border: 1px solid black;
border-radius: 5px;
padding: 0px 10px;
margin: 20px auto;
}
.box div{
border-bottom: 1px solid black;
padding-bottom: 10px;
}
.box input{
margin: 10px;
}
</style>
</head>
<body>
<div>
<div>
<input type="checkbox" id="checkall" onclick="checkall()"><label for="checkall">全選</label>
</div>
<input type="checkbox" name="item[]">選項(xiàng)1<br>
<input type="checkbox" name="item[]">選項(xiàng)2<br>
<input type="checkbox" name="item[]">選項(xiàng)3<br>
<input type="checkbox" name="item[]">選項(xiàng)4<br>
<input type="checkbox" name="item[]">選項(xiàng)5<br>
<input type="checkbox" name="item[]">選項(xiàng)6<br>
</div>
<script type="text/javascript">
function checkall(){
var checkall,item;
checkall=document.getElementById('checkall') //checkall 全選
item=document.getElementsByName('item[]')
// for (var i = 0; i<item.length; i++) {
// if (checkall.checked) { //checked 屬性規(guī)定在頁(yè)面加載時(shí)應(yīng)該被預(yù)先選定的 input 元素。
// item[i].checked=true
// }else{
// item[i].checked=false
// }
// }
var i=0;
while(i<item.length){
if (checkall.checked) {
item[i].checked=true
}else{
item[i].checked=false
}
i++
}
}
</script>
</body>
</html>
Correcting teacher：查無(wú)此人Correction time：2019-04-04 16:20:17
Teacher's summary：完成的不錯(cuò)。下次把代碼縮進(jìn)，每行js語(yǔ)句結(jié)束，要增加;號(hào)。繼續(xù)加油