<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> *{ margin: 0; padding: 0; } ul{ width: 400px; height: 400px; border: 1px solid #000000; margin: 0 auto; } ul li{ list-style: none; width: 80px; height: 40px; line-height: 40px; text-align: center; border: 1px solid #000000; margin: 10px; float: left; } .box{ width: 400px; margin: 40px auto; } button{ width: 100px; height: 40px; margin:20px 10px; } </style> </head> <body> <ul> </ul> <div class="box"> <button data-type="yy">英语</button> <button data-type="yw">语文</button> <button data-type="sx">数学</button> <button data-type="ty">体育</button> <button data-type="wl">物理</button> <button data-type="ms">美术</button> </div> <script> var uul=document.getElementsByTagName("ul")[0]; var btn=document.getElementsByTagName("button"); var nli; for(var i= 0;i<btn.length;i++){ btn[i].onclick=function () { var hasLi=false; nli= document.createElement("li"); nli.innerHTML=this.innerHTML+"<span> ✖ </span>"; var type=this.getAttribute("data-type"); nli.setAttribute("data-type",type); var ali=uul.getElementsByTagName("li"); for(var i=0;i<ali.length;i++){ if(ali[i].getAttribute("data-type")==this.getAttribute("data-type")){ hasLi=true; break; }else{ hasLi=false; } } if(hasLi==false){ uul.append(nli); } // 删除 var span= nli.getElementsByTagName("span")[0]; span.onclick=function () { uul.removeChild(this.parentNode); } } } </script> </body></html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> *{ margin: 0; padding: 0; } ul{ width: 400px; height: 400px; border: 1px solid #000000; margin: 0 auto; } ul li{ list-style: none; width: 80px; height: 40px; line-height: 40px; text-align: center; border: 1px solid #000000; margin: 10px; float: left; } .box{ width: 400px; margin: 40px auto; } button{ width: 100px; height: 40px; margin:20px 10px; } </style> </head> <body> <ul> </ul> <div class="box"> <button data-type="yy">英语</button> <button data-type="yw">语文</button> <button data-type="sx">数学</button> <button data-type="ty">体育</button> <button data-type="wl">物理</button> <button data-type="ms">美术</button> </div> <script> var uul=document.getElementsByTagName("ul")[0]; var btn=document.getElementsByTagName("button"); var nli; for(var i= 0;i<btn.length;i++){ btn[i].onclick=function () { var hasLi=false; nli= document.createElement("li"); nli.innerHTML=this.innerHTML+"<span> ✖ </span>"; var type=this.getAttribute("data-type"); nli.setAttribute("data-type",type); var ali=uul.getElementsByTagName("li"); for(var i=0;i<ali.length;i++){ if(ali[i].getAttribute("data-type")==this.getAttribute("data-type")){ hasLi=true; break; }else{ hasLi=false; } } if(hasLi==false){ uul.append(nli); } // 删除 var span= nli.getElementsByTagName("span")[0]; span.onclick=function () { uul.removeChild(this.parentNode); } } } </script> </body> </html>
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title> 购物车</title>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<script src="js/jquery.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/angular.js"></script>
<style>
span{padding-left:50px;padding-right:50px;}
</style>
<script>
var app=angular.module('myApp',[]);
app.controller('myCtrl',function($scope){
$scope.shopList=[
{ name:'单片机',price:'80.90',num:10},
{ name:'电烙铁',price:'20.40',num:10},
{ name:'万用表',price:'46.90',num:10},
{ name:'示波器',price:'231.00',num:10},
{ name:'电源',price:'279.30',num:10}
];
//减少
$scope.reduce= function (index) {
if($scope.shopList[index].num>1){
$scope.shopList[index].num--;
}else{
$scope.remove(index);
}
};
//增加
$scope.add=function(index){
$scope.shopList[index].num++;
};
//计算总价
$scope.allSum=function(){
var allPrice = 0;
for(var i= 0;i<$scope.shopList.length;i++){
allPrice+=$scope.shopList[i].price*$scope.shopList[i].num;
}
return allPrice;
};
//计算总数量
$scope.allNum=function(){
var allShu=0;
for(var i=0;i<$scope.shopList.length;i++){
allShu+=$scope.shopList[i].num;
}
return allShu;
};
//移除一项
$scope.remove=function(index){
if(confirm('确定移除此项吗?')){
$scope.shopList.splice(index,1);
}
};
//使得输入框中不得小于等于0
$scope.change=function(index){
if($scope.shopList[index].num>=1){
}else{
$scope.shopList[index].num=1;
}
};
//清空购物车
$scope.removeAll=function(){
if(confirm('确定清空购物车')){
$scope.shopList=[];
}
}
});
</script>
</head>
<body ng-app="myApp">
<div class="container">
<div ng-controller="myCtrl">
<ul class="list-group">
<li ng-repeat="shop in shopList" class="list-group-item">
<span>{{shop.name}}</span>
<span>{{shop.price|currency}}</span>
<span>
<button ng-click="reduce($index)">-</button>
<input type="text" placeholder="请输入大于0的数" ng-model="shop.num" ng-change="change($index)">
<button ng-click="add($index)">+</button>
</span>
<span>{{shop.price*shop.num}}</span>
<button class="btn btn-primary btn-xs" ng-click="remove($index)">移除</button>
</li>
</ul>
总价:<span ng-bind="allSum()"></span> 总数:<span ng-bind="allNum()"></span>
<button class="btn btn-warning "ng-click="removeAll()">清空购物车</button>
</div>
</div>
</body>
</html>