模态框
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
html, body {
height: 100%;
}
#bg {
height: 100%;
background-color: rgba(0, 0, 0, 0.3);
}
#content {
position: relative;
top: 150px;
400px;
height: 200px;
line-height: 200px;
text-align: center;
color: red;
background-color: white;
margin: 0 auto;
}
#cancel {
position: absolute;
top: 0;
right: 0;
color: white;
30px;
height: 30px;
line-height: 30px;
text-align: center;
background-color: red;
}
</style>
</head>
<body>
<input type="button" value="弹出模态框" id="btn">
<script>
var oBtn = document.getElementById('btn');
var oDiv = document.createElement('div');
var oP = document.createElement('p');
var oSpan = document.createElement('span');
oDiv.id = 'bg';
oP.id = 'content';
oSpan.id = 'cancel';
oP.innerHTML = '弹出模态框';
oSpan.innerHTML = 'X';
oDiv.appendChild(oP);
oP.appendChild(oSpan);
oBtn.onclick = function () {
this.parentNode.replaceChild(oDiv, this);
};
oSpan.onclick =function () {
oDiv.parentNode.replaceChild(oBtn,oDiv);
}
</script>
</body>
</html>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
html,body {
height: 100%;
}
#bg {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: rgba(0,0,0,0.3);
display: none;
}
#content {
position: absolute;
top: 100px;
left: 50%;
margin-left: -150px;
background-color: white;
300px;
height: 200px;
}
#content p:nth-child(3) {
position: absolute;
top: 100px;
}
</style>
</head>
<body>
<input type="button" value="弹出" id="btn">
<div id="bg">
<div id="content">
<p>
<label for="inp-username">用户名: </label><input type="text" name="username" id="inp-username">
</p>
<p>
<label for="inp-password">密码: </label><input type="text" name="username" id="inp-password">
</p>
<p>
<input type="button" value="提交" >
<input type="button" value="取消" id="cancel">
</p>
</div>
</div>
<script>
var oBtn = document.getElementById('btn');
var oBg = document.getElementById('bg');
var oInpUsername=document.getElementById('inp-username');
var oInpPwd=document.getElementById('inp-password');
var oInp=document.getElementById('cancel');
oBtn.onclick=function () {
oBg.style.display='block';
}
oInp.onclick=function () {
oInpUsername.value='';
oInpPwd.value='';
oBg.style.display='none'
}
</script>
</body>
</html>
点击有惊喜
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
.box {
200px;
height: 200px;
background: red;
text-align: center;
color: white;
line-height: 200px;
font-size: 23px;
font-weight: bold;
margin: 20px auto;
}
</style>
</head>
<body>
<div class="box">点击有惊喜!!!</div>
<script>
var oBox = document.getElementsByClassName('box')[0];
//初始化点击的次数。通过次数的增加来改变DOM的样式
var a = 0;
oBox.onclick = function () {
a++;
console.log(a % 4);
if (a % 4 === 1) {
this.style.background = 'green';
this.innerText = '继续点击哦!!!';
} else if (a % 4 == 2) {
this.style.background = 'blue';
this.innerText = '骗你的,傻逼';
} else if (a % 4 == 3) {
this.style.background = 'transparent';
this.innerText = '';
} else {
this.style.background = 'red';
this.innerText = '点击有惊喜!!!';
}
}
</script>
</body>
</html>
简易评论板
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
#comment {
background-color: #b0b0b0;
500px;
}
#comment ul li {
list-style: none;
background-color: wheat;
border: 1px dashed #000;
margin: 0px 10px 10px;
word-break: break-all;
word-wrap: break-word;
}
</style>
</head>
<body>
<div id="comment">
<p>评论内容:</p>
</div>
<div id="box">
<p>留言内容:</p>
<textarea name="" id="content" cols="30" rows="10"></textarea>
<p>
<input type="button" value="提交" id="btn">
<input type="button" value="统计" id="calculate">
</p>
</div>
<script>
var comment = document.getElementById('comment');
var box = document.getElementById('box');
var submit = document.getElementById('submit');
var content = document.getElementById('content');
var btn = document.getElementById('btn');
var calculate=document.getElementById('calculate');
var ul = document.createElement('ul');
comment.appendChild(ul);
var count=0;
btn.onclick = function () {
var val = content.value;
if (val.length != 0) {
var date = new Date();
var subTime = date.toLocaleString();
var li = document.createElement('li');
var p1 = document.createElement('h3');
var p2 = document.createElement('p');
var spans = document.getElementsByClassName('del');
count=spans.length+1;
p1.innerHTML = '#'+'<span class="num">'+count+'</span>'+'楼'+' '+subTime + '<span class="del"> 删除</span>';
p2.innerHTML = val;
li.appendChild(p1);
li.appendChild(p2);
ul.appendChild(li);
content.value = '';
}
function aa() {
var spans = document.getElementsByClassName('del');
for (var i = 0; i < spans.length; i++) {
spans[i].onclick=function (currentIndex) {
function bb() {
ul.removeChild(this.parentNode.parentNode);
count--;
var ss=document.getElementsByClassName('num');
for (var j=currentIndex;j<ss.length;j++){
ss[j].innerHTML=parseInt(ss[j].innerHTML)-1;
}
aa();
}
return bb;
}(i);
}
}
aa()
};
calculate.onclick = function () {
alert('一共发布了'+count+'条评论');
}
</script>
</body>
</html>
选项卡
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
.tab {
480px;
height: 200px;
border: 1px solid red;
margin: 0 auto;
}
ul li {
list-style: none;
160px;
height: 60px;
line-height: 60px;
text-align: center;
background-color: #b0b0b0;
float: left;
}
li.active {
background-color: #55BBBB;
}
p {
display: none;
height: 200px;
text-align: center;
line-height: 200px;
background-color: white;
}
p.active {
display: block;
}
</style>
</head>
<body>
<div class="tab">
<ul>
<li class="active">首页</li>
<li>新闻</li>
<li>图片</li>
</ul>
<p class="active">首页内容</p>
<p>新闻内容</p>
<p>图片内容</p>
</div>
<script>
var aLi=document.getElementsByTagName('li');
var aP=document.getElementsByTagName('p');
for (var i=0;i<aLi.length;i++){
aLi[i].index=i;
aLi[i].onclick=function () {
for (var j=0;j<aLi.length;j++){
aLi[j].className='';
aP[j].className='';
}
this.className='active';
aP[this.index].className='active';
}
}
</script>
</body>
</html>
仿淘宝搜索框
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
#search {
position: relative;
}
input {
outline: none;
display: block;
border: 2px solid #f2a83c;
border-radius: 10px;
490px;
height: 50px;
margin-top: 20px;
}
label {
position: absolute;
top: 20px;
left: 10px;
font-size: 8px;
color: gray;
}
</style>
</head>
<body>
<div id="search">
<input type="text" id="text">
<label for="text" id="msg">输入商品</label>
</div>
<script>
var txt = document.getElementById('text');
var msg = document.getElementById('msg');
//检测用户表单输入的时候
txt.oninput = function () {
//控制元素显示隐藏
if (this.value == '') {
msg.style.display = 'block';
} else {
msg.style.display = 'none';
}
}
</script>
</body>
</html>
获取当前时间
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script>
setInterval(function () {
var date = new Date();
var y = date.getFullYear();
var m = date.getMonth();
var d = date.getDate();
var h = date.getHours();
var min = date.getMinutes();
var s = date.getSeconds();
//今天是2018年2月23日 8:23:09
document.body.innerHTML = "今天是" + y + '年' + num(m + 1) + "月" + num(d) + "日" + num(h) + ":" + num(min) + ":" + num(s)
}, 1000)
function num(n) {
if (n < 10) {
return "0" + n;
}
return n
}
</script>
</body>
</html>
匀速运动
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
.box {
200px;
height: 200px;
background-color: #FF0000;
position: absolute;
top: 50px;
left: 0px;
}
</style>
</head>
<body>
<div id="wrap">
<button id="btn1">前进</button>
<button id="btn2">后退</button>
<div class="box" id="box1">
</div>
</div>
<script>
var btn1 = document.getElementById('btn1');
var btn2 = document.getElementById('btn2');
var box1 = document.getElementById('box1')
var count = 0;
var time1 = null;
var time2 = null;
btn1.onclick = function () {
clearInterval(time2);
time1 = setInterval(function () {
count += 10;
if (count > 1000) {
box1.style.left = '1000px';
box1.style.borderRadius = '50%';
clearInterval(time1);
} else {
box1.style.left = count + 'px';
box1.style.borderRadius = count / 2000 * 100 + '%';
}
}, 10)
};
btn2.onclick = function () {
clearInterval(time1);
time2 = setInterval(function () {
count -= 10;
if (count <= 0) {
box1.style.left = '0px';
box1.style.borderRadius = '';
clearInterval(time2);
} else {
box1.style.left = count + 'px';
box1.style.borderRadius = count / 2000 * 100 + '%';
;
}
}, 10)
}
</script>
</body>
</html>
5s后关闭广告
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
img {
position: fixed;
300px;
}
ul {
list-style: none;
}
#left {
left: 0;
}
#right {
right: 0;
}
ul li {
font-size: 25px;
}
</style>
</head>
<body>
<img src="images/1.jpg" id="left">
<img src="images/1.jpg" id="right">
<ul>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
<li>屠龙宝刀,点击就送</li>
</ul>
<script>
window.onload = function () {
var left = document.getElementById('left');
var right = document.getElementById('right');
setTimeout(function () {
left.style.display = 'none';
right.style.display = 'none';
}, 5000)
}
</script>
</body>
</html>
小米滚动
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
.wrap {
512px;
height: 400px;
border: 3px solid #808080;
position: relative;
overflow: hidden;
margin: 100px auto;
}
.wrap span {
100%;
height: 200px;
position: absolute;
background-color: transparent;
border: 1px solid #000;
}
.up {
top: 0;
}
.down {
bottom: 0;
}
img {
position: absolute;
top: 0;
left: 0;
height: 200px;
}
</style>
</head>
<body>
<div id="box" class="wrap">
<img src="images/mi.png" id="xiaomi">
<span class="up" id="picUp">11111</span>
<span class="down" id="picDown">22222</span>
</div>
<script>
var up = document.getElementById('picUp');
var down = document.getElementById('picDown');
var img = document.getElementById('xiaomi');
var count = 0;
var time = null;
//鼠标移入的时候吧
up.onmouseover = function () {
//不管怎样 上来先清定时器
clearInterval(time);
time = setInterval(function () {
count -= 3;
count >= -1070 ? img.style.top = count + 'px' : clearInterval(time);
}, 30)
};
down.onmouseover = function () {
clearInterval(time);
time = setInterval(function () {
count += 1;
count < 0 ? img.style.top = count + 'px' : clearInterval(time);
}, 30)
}
</script>
</body>
</html>
无缝轮播
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
ul {
list-style: none;
}
.box {
600px;
height: 700px;
margin: 50px auto;
overflow: hidden;
position: relative;
border: 1px solid #000;
}
ul li {
float: left;
}
.box ul {
500%;
position: absolute;
top: 0;
left: 0;
}
img {
600px;
}
</style>
</head>
<body>
<div class="box">
<ul>
<li><img src="https://images2018.cnblogs.com/blog/1036857/201805/1036857-20180516225816920-580320384.jpg"/></li>
<li><img src="https://images2018.cnblogs.com/blog/1036857/201805/1036857-20180516225809591-1990809146.jpg"/></li>
<li><img src="https://images2018.cnblogs.com/blog/1036857/201805/1036857-20180516225724530-539090864.jpg"/></li>
<li><img src="https://images2018.cnblogs.com/blog/1036857/201805/1036857-20180516225751362-1832630751.jpg"/></li>
<li><img src="https://images2018.cnblogs.com/blog/1036857/201805/1036857-20180516225816920-580320384.jpg"/></li>
</ul>
</div>
<script>
var box = document.getElementsByClassName('box')[0];
var ul = box.children[0];
var num = 0;
var timer = null;
timer = setInterval(autoPlay, 3);
//函数的声明
function autoPlay() {
num--;
num <= -2400? num = 0: num;
ul.style.left = num + 'px'
}
//鼠标移动上去
box.onmouseover = function () {
clearInterval(timer)
};
box.onmouseout = function () {
timer = setInterval(autoPlay, 3);
}
</script>
</body>
</html>
用户名和密码校验
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
span {
background-color: red;
}
</style>
</head>
<body>
<form>
<p>
<input type="text" name="username">
<span></span>
</p>
<p>
<input type="password" name="password">
<span></span>
</p>
<p>
<input type="button" value="提交" id="btn">
</p>
</form>
<script>
var isOk1=false
var reg1=new RegExp('(?!^[0-9]+$)(?!^[a-zA-Z]+$)^[0-9A-Za-z]{4}$')
var inp1 = document.getElementsByName("username")[0]
inp1.onblur=function () {
var res=reg1.test(this.value)
this.style.border="1px solid red"
if (!res) {
this.nextElementSibling.innerText="用户名必须由4位字母和数字组成"
setTimeout(function () {
inp1.nextElementSibling.innerText=""
inp1.value=""
},3000)
}else {
this.style.border="1px solid green"
isOk1=true
}
}
var isOk2=false
var reg2=new RegExp('(?!^[0-9]+$)(?!^[a-zA-Z]+$)^[0-9A-Za-z]{6}$')
var inp2 = document.getElementsByName("password")[0]
inp2.onblur=function () {
var res=reg2.test(this.value)
this.style.border="1px solid red"
if (!res) {
this.nextElementSibling.innerText="密码必须由6位字母和数字组成"
setTimeout(function () {
inp2.nextElementSibling.innerText=""
inp2.value=""
},3000)
}else {
this.style.border="1px solid green"
isOk2=true
}
}
var btn=document.getElementById("btn")
btn.onclick=function () {
if(isOk1 && isOk2) {
alert("提交成功")
}else {
alert("请重新填写")
}
}
</script>
</body>
</html>