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How to use checkboxes in HTML pages
- 高洛峰Original
- 2017-03-11 11:50:153140browse
Checkboxes are very common on web pages. Whether it is an e-commerce website or a platform, you will see checks wherever there is a need to choose. Next, there are two small demos I have written before, both about check boxes. The specific codes are shared on the Script Home platform for your reference.
Check boxes are very common on web pages. , whether it is an e-commerce website or a platform, you will see check boxes wherever you need to choose. Next, there are two small demos I wrote before, both about check boxes. I hope they will be helpful to everyone.
The first one is about the operation of selecting all check boxes and inverting the selection. Of course, I also added a small function in it, that is, when the check boxes of Shangpin or other things below are all selected. Then the Select All button also becomes selected; vice versa.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
td{
border: 1px solid black;
text-align: center;
}
table{
border: 1px solid black;
}
#opp{
border-radius: 50%;
width: 20px;
height: 20px;
border: 1px style #eee;
outline-style: none;
}
</style>
</head>
<body>
<table>
<tr>
<td><input id="all" type="checkbox">全选</td>
<td width="300px">复选框全选示例</td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input class="list" type="checkbox"></td>
<td></td>
</tr>
<tr>
<td><input id="opp" type="button">反选</td>
<td></td>
</tr>
</table>
<script>
var vll = document.getElementById("all");
var vlist=document.getElementsByClassName("list");
var vopp=document.getElementById("opp");
vll.onclick=function(){
for(var i=0;i<vlist.length;i++){
vlist[i].checked=vll.checked;
}
}
for( var i=0;i<vlist.length;i++){
vlist[i].onclick=function(){
if(this.checked==false){
vll.checked=false;
}
else{
for(var i2=0;i2<vlist.length;i2++){
if(vlist[i2].checked==false){
break;
}
if(i2>=vlist.length-1){
vll.checked=true;
}
}
}
}
}
vopp.onclick=function(){
for(var i=0;i<vlist.length;i++){
vlist[i].checked=!vlist[i].checked;
if(vlist[i].checked==false){
vll.checked=false;
}
}
}
</script>
</body>
</html>The second one is to customize the checkbox style, that is, we can replace our checkboxes with pictures to add a cool effect; and Here I am completely using CSS3 writing method, no JavaScript is involved;
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
.box1{
width: 1000px;
height: 50px;
position: relative;
}
input{
width: 50px;
height: 50px;
opacity: 1;
display: none;
}
input+label{
display: block;
width: 50px;
height: 50px;
background: url(img/2.png);
background-size: 100%;
}
input:checked+label{
background: url(img/1.PNG);
background-size: 100%;
}
</style>
</head>
<body>
<p class="box1">
<input type="checkbox" name="" id="input1" value="" />
<label for="input1"></label>
</p>
<p class="box2">
<input type="checkbox" name="" id="input2" value="" />
<label for="input2"></label>
</p>
<p class="box3">
<input type="checkbox" name="" id="input3" value="" />
<label for="input3"></label>
</p>
</body>
</html>The above is the operation method of check boxes in HTML pages introduced by the editor. I hope it is helpful to you. If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank you all for your support of the Script House website!
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