js完成全选或取消全选,最好以相册中选择图片为例

JavaScript017

js完成全选或取消全选,最好以相册中选择图片为例,第1张

<script>

var s = 1

function jisuan(){

var m = document.getElementsByTagName("input")

for(var i=1i<m.lengthi++){

if(m[i].type=="checkbox" &&s%2==1){

m[i].checked = true

}else{

m[i].checked = false

}

}

s++

}

</script>

<input type="checkbox" onclick="jisuan()" /><br />

<form action="你要提交的地址">

<input type="checkbox" name="pic[]" />

<input type="checkbox" name="pic[]" />

<input type="checkbox" name="pic[]" />

<input type="checkbox" name="pic[]" />

<input type="checkbox" name="pic[]" />

</form>

这跟是不是相册没有关系吧，把图片的地址、名字或者ID赋值给checkbox的value都可以啊

<!doctype html>

<html>

<head>

<meta charset="UTF-8">

<meta name="Generator" content="EditPlus®">

<meta name="Author" content="">

<meta name="Keywords" content="">

<meta name="Description" content="">

<title>Document</title>

<script src="jquery-3.1.1.min.js"></script>

</head>

<body>

<h3>请选择图片文件：JPG/GIF</h3>

<form name="form0" id="form0" >

<input type="file" name="file0" id="file0" multiple="multiple" />

<br><br><img src="" id="img0" width="120">

</form>

</body>

<script>

$("#file0").change(function(){

var objUrl = getObjectURL(this.files[0])

console.log("objUrl = "+objUrl)

if (objUrl)

{

$("#img0").attr("src", objUrl)

$("#img0").removeClass("hide")

}

})

//建立一个可存取到该file的url

function getObjectURL(file)

{

var url = null

if (window.createObjectURL!=undefined)

{ // basic

url = window.createObjectURL(file)

}

else if (window.URL!=undefined)

{

// mozilla(firefox)

url = window.URL.createObjectURL(file)

}

else if (window.webkitURL!=undefined) {

// webkit or chrome

url = window.webkitURL.createObjectURL(file)

}

return url

}

$('input').on('change',function(){

var value = $(this).val()

value = value.split("\\")[2]

alert(value)

})

</script>

</html>