checkbook全选/反选/全不选
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<ul id="list">
<li><label><input type="checkbox" value="1"> 1.时间都去哪儿了</label></li>
<li><label><input type="checkbox" value="2"> 2.海阔天空</label></li>
<li><label><input type="checkbox" value="3"> 3.真的爱你</label></li>
<li><label><input type="checkbox" value="4"> 4.不再犹豫</label></li>
<li><label><input type="checkbox" value="5"> 5.光辉岁月</label></li>
<li><label><input type="checkbox" value="6"> 6.喜欢妳</label></li>
</ul>
<input type="checkbox" id="all">
<input type="button" value="全选" class="btn" id="selectAll">
<input type="button" value="全不选" class="btn" id="unSelect">
<input type="button" value="反选" class="btn" id="reverse">
<input type="button" value="获得选中的所有值" class="btn" id="getValue">
<script src="jquery-1.11.3.js"></script>
<script>
$(function () {
//全选或全不选
$("#all").click(function(){
if(this.checked){
$("#list :checkbox").attr("checked", true);
}else{
$("#list :checkbox").attr("checked", false);
}
});
//全选
$("#selectAll").click(function () {
$("#list :checkbox,#all").attr("checked", true);
});
//全不选
$("#unSelect").click(function () {
$("#list :checkbox,#all").attr("checked", false);
});
//反选
$("#reverse").click(function () {
$("#list :checkbox").each(function () {
$(this).attr("checked", !$(this).attr("checked"));
});
allchk();
});
//设置全选复选框
$("#list :checkbox").click(function(){
allchk();
});
//获取选中选项的值
$("#getValue").click(function(){
var valArr = new Array;
$("#list :checkbox[checked]").each(function(i){
valArr[i] = $(this).val();
});
var vals = valArr.join(',');
alert(vals);
});
});
function allchk(){
var chknum = $("#list :checkbox").size();//选项总个数
var chk = 0;
$("#list :checkbox").each(function () {
if($(this).attr("checked")==true){
chk++;
}
});
if(chknum==chk){//全选
$("#all").attr("checked",true);
}else{//不全选
$("#all").attr("checked",false);
}
}
</script>
</body>
</html>
