JavaScript定时器制作弹窗小广告

2019-11-19 17:43:53

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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：