js实现一个简单的加减乘除计算器效果代码-html代码-BFW代码库

js实现一个简单的加减乘除计算器效果代码

代码语言：html

所属分类：其他

代码描述：js实现一个简单的加减乘除计算器效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">

  
  
<style>
/* Basic reset */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	
	/* Better text styling */
	font: bold 14px Arial, sans-serif;
}

/* Finally adding some IE9 fallbacks for gradients to finish things up */

/* A nice BG gradient */
html {
	height: 100%;
	background: white;
	background: radial-gradient(circle, #fff 20%, #ccc);
	background-size: cover;
}

/* Using box shadows to create 3D effects */
#calculator {
	width: 325px;
	height: auto;
	
	margin: 30px auto;
	padding: 20px 20px 9px;
	
	background: #9dd2ea;
	background: linear-gradient(#9dd2ea, #8bceec);
	border-radius: 3px;
	box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}

/* Top portion */
.top span.clear {
	float: left;
}

/* Inset shadow on the screen to create indent */
.top .screen {
	height: 40px;
	width: 212px;
	
	float: right;
	
	padding: 0 10px;
	
	background: rgba(0, 0, 0, 0.2);
	border-radius: 3px;
	box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
	
	/* Typography */
	font-size: 17px;
	line-height: 40px;
	color: white;
	text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
	text-align: right;
	letter-spacing: 1px;
}

/* Clear floats */
.keys, .top {overflow: hidden;}

/* Applying same to the keys */
.keys span, .top span.clear {
	float: left;
	position: relative;
	top: 0;
	
	cursor: pointer;
	
	width: 66px;
	height: 36px;
	
	background: white;
	border-radius: 3px;
	box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
	
	margin: 0 7px 11px 0;
	
	color: #888;
	line-height: 36px;
	text-align: center;
	
	/* prevent selection of text inside keys */
	user-select: none;
	
	/* Smoothing out hover and active states using css3 transitions */
	transition: all 0.2s ease;
}

/* Remove right margins from operator keys */
/* style different type of keys (operators/evaluate/clear) differently */
.keys span.operator {
	background: #FFF0F5;
	margin-right: 0;
}

.keys span.eval {
	background: #f1ff92;
	box-shadow: 0px 4px #9da853;
	color: #888e5f;
}

.top span.clear {
	background: #ff9fa8;
	box-shadow: 0px 4px #ff7c87;
	color: white;
}

/* Some hover effects */
.keys span:hover {
	background: #9c89f6;
	box-shadow: 0px 4px #6b54d3;
	color: white;
}

.keys span.eval:hover {
	background: #abb850;
	box-shadow: 0px 4px #717a33;
	color: #ffffff;
}

.top span.clear:hover {
	background: #f68991;
	box-shadow: 0px 4px #d3545d;
	color: white;
}

/* Simulating "pressed" effect on active state of the keys by removing the box-shadow and moving the keys down a bit */
.keys span:active {
	box-shadow: 0px 0px #6b54d3;
	top: 4px;
}

.keys span.eval:active {
	box-shadow: 0px 0px #717a33;
	top: 4px;
}

.top span.clear:active {
	top: 4px;
	box-shadow: 0px 0px #d3545d;
}

h1 {
  text-align: center;
  padding-bottom: 30px;
}

a.link {
  text-decoration: none;
  font: normal 14px Helvetica, Arial, sans-serif;
  color: green;
}
</style>



</head>

<body  >
  <div id="calculator">
	<!-- Screen and clear key -->
	<div class="top">
		<span class="clear">C</span>
		<div class="screen"></div>
	</div>
	
	<div class="keys">
		<!-- operators and other keys -->
		<span>7</span>
		<span>8</span>
		<span>9</span>
		<span class="operator">+</span>
		<span>4</span>
		<span>5</span>
		<span>6</span>
		<span class="operator">-</span>
		<span>1</span>
		<span>2</span>
		<span>3</span>
		<span class="operator">÷</span>
		<span>0</span>
		<span>.</span>
		<span class="eval">=</span>
		<span class="operat.........完整代码请登录后点击上方下载按钮下载查看