JavaScript定时器制作弹窗小广告

更新时间：2020-04-21 00:38:25 作者：startmvc

本文实例为大家分享了js定时器制作弹窗广告的具体代码，供大家参考，具体内容如下<hea

本文实例为大家分享了js定时器制作弹窗广告的具体代码，供大家参考，具体内容如下


<head>
 <meta charset="UTF-8">
 <title>Title</title>
 <style type="text/css">
 * {
 padding: 0;
 margin: 0;
 }
 li {
 list-style: none;
 }
 body {
 background: #940032;
 }

 #counter {
 width: 500px;
 height: 420px;
 background: #939;
 margin: 50px auto 0;
 position: relative;
 }

 #counter h2 {
 line-height: 42px;
 padding-left: 15px;
 font-size: 14px;
 font-family: arial;
 color: #ff3333;
 }

 #counter a {
 font-weight: normal;
 text-decoration: none;
 color: #ff3333;
 }

 #counter a:hover {
 text-decoration: underline;
 }

 #bg {
 width: 280px;
 height: 200px;
 border: 3px solid #680023;
 background: #990033;
 filter: alpha(opacity=80);
 opacity: 0.8;
 position: absolute;
 left: 50%;
 top: 115px;
 margin-left: -141px;
 }

 #counter_content {
 width: 250px;
 position: absolute;
 top: 130px;
 left: 130px;
 z-index: 1;
 }

 #counter_content h3 {
 margin-bottom: 10px;
 }

 #counter_content h3 input {
 border: none;
 width: 223px;
 height: 30px;
 line-height: 30px;
 padding: 0 10px;
 background: url(img/ico.png) no-repeat;
 text-align: right;
 color: #333;
 font-size: 14px;
 font-weight: bold;
 }

 #counter_content div {
 width: 250px;
 }

 #counter_content input {
 width: 60px;
 height: 30px;
 line-height: 30px;
 float: left;
 background: url(img/ico.png) no-repeat -303px 0;
 text-align: center;
 color: #fff;
 cursor: pointer;
 margin: 0 1px 4px 0;
 border: 0;
 }

 #counter_content div > input:hover {
 background: url(img/ico.png) no-repeat -243px 0;
 }

 #counter p {
 width: 500px;
 position: absolute;
 bottom: 20px;
 left: 0;
 color: #ff3333;
 text-align: center;
 font-size: 12px;
 }
 </style>
</head>
<body>
<div id="counter">
 <h2>简易计算</h2>
 <div id="counter_content">
 <h3><input id="input1" type="text" value="0"/></h3>
 <div id="div1">
 <input type="button" value="7" onclick="kick('7')"/>
 <input type="button" value="8" onclick="kick('8')"/>
 <input type="button" value="9" onclick="kick('9')"/>
 <input type="button" value="+" onclick="kick('+')"/>
 <input type="button" value="4" onclick="kick('4')"/>
 <input type="button" value="5" onclick="kick('5')"/>
 <input type="button" value="6" onclick="kick('6')"/>
 <input type="button" value="-" onclick="kick('-')"/>
 <input type="button" value="1" onclick="kick('1')"/>
 <input type="button" value="2" onclick="kick('2')"/>
 <input type="button" value="3" onclick="kick('3')"/>
 <input type="button" value="*" onclick="kick('*')"/>
 <input type="button" value="0" onclick="kick('0')"/>
 <input type="button" value="C" onclick="kick('C')"/>
 <input type="button" value="=" onclick="kick('=')"/>
 <input type="button" value="/" onclick="kick('/')"/>
 </div>
 </div>
</div>
</body>
<script>
 var showInput = document.getElementById("input1");
 var isClear = false;
 var tempStr = "";
 var clacType = "";
 var isContinue = true;
 function kick(clickValue) {
 switch (clickValue) {
 case "=":
 if (tempStr != "" && clacType != "") {
 showInput.value = clac(tempStr, showInput.value, clacType);
 isContinue = false;
 clacType = "";
 }
 break;
 case "+":
 case "-":
 case "*":
 case "/":
 //如果预存的操作符不为空 表示表示连续操作
 if (clacType != "" && !isContinue) { //先执行计算
 tempStr = clac(tempStr, showInput.value, clacType);
 isClear = true;
 clacType = clickValue;
 } else {
 tempStr = showInput.value; //点击操作符之后 预存字符
 isClear = true;//表示点击了操作符
 clacType = clickValue;//预存操作符
 }
 isContinue = true;
 break;
 case "C":
 showInput.value = "0";
 isClear = false;
 tempStr = "";
 clacType = "";
 break;
 default://普通的数字按钮点击
 showInput.value = showInput.value == "0" ? "" : showInput.value;
 isContinue = false;
 if (isClear) {
 showInput.value = "";
 showInput.value += clickValue;
 isClear = false;
 } else {
 showInput.value += clickValue;
 }
 break;
 }
 }


 function clac(num1, num2, type) {
 switch (type) {
 case "+":
 return Number(num1) + Number(num2);
 case "-":
 return Number(num1) - Number(num2);
 case "*":
 return Number(num1) * Number(num2);
 case "/":
 return Number(num1) / Number(num2);
 default:
 break;
 }
 }
 </script>

效果图：