好看的前端计算器代码分享（html+css+js制作计算器）

GeekLiHua

发布于 2025-01-21 13:28:00

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代码可运行

文章被收录于专栏：JavaJava

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代码可运行

好看的前端计算器代码分享（html+css+js制作计算器）

简介：这里分享的html+css+js制作的几个计算器代码。

第一个

demo演示

<!DOCTYPE html>
<html>
<head>
    <title>计算器</title>
    <style type="text/css">
        body {
            background-color: #F5F5F5;
            font-family: Arial, sans-serif;
        }
        h1 {
            text-align: center;
            margin-top: 50px;
        }
        .container {
            width: 300px;
            margin: 0 auto;
            background-color: #FFFFFF;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0px 0px 10px #888888;
        }
        input[type="button"] {
            background-color: #4CAF50;
            color: #FFFFFF;
            border: none;
            padding: 10px;
            width: 100%;
            margin-bottom: 5px;
            cursor: pointer;
            border-radius: 5px;
        }
        input[type="text"] {
            width: 100%;
            padding: 10px;
            border-radius: 5px;
            border: 1px solid #CCCCCC;
            margin-bottom: 10px;
        }
    </style>
</head>
<body>
    <h1>前端计算器</h1>
    <div class="container">
        <input type="text" id="display" readonly>
        <input type="button" value="1" onclick="addToDisplay('1')">
        <input type="button" value="2" onclick="addToDisplay('2')">
        <input type="button" value="3" onclick="addToDisplay('3')">
        <input type="button" value="+" onclick="addToDisplay('+')">
        <input type="button" value="4" onclick="addToDisplay('4')">
        <input type="button" value="5" onclick="addToDisplay('5')">
        <input type="button" value="6" onclick="addToDisplay('6')">
        <input type="button" value="-" onclick="addToDisplay('-')">
        <input type="button" value="7" onclick="addToDisplay('7')">
        <input type="button" value="8" onclick="addToDisplay('8')">
        <input type="button" value="9" onclick="addToDisplay('9')">
        <input type="button" value="*" onclick="addToDisplay('*')">
        <input type="button" value="." onclick="addToDisplay('.')">
        <input type="button" value="0" onclick="addToDisplay('0')">
        <input type="button" value="C" onclick="clearDisplay()">
        <input type="button" value="/" onclick="addToDisplay('/')">
        <input type="button" value="=" onclick="calculate()">
    </div>
    <script type="text/javascript">
        function addToDisplay(value) {
            document.getElementById("display").value += value;
        }
        function clearDisplay() {
            document.getElementById("display").value = "";
        }
        function calculate() {
            var expression = document.getElementById("display").value;
            var result = eval(expression);
            document.getElementById("display").value = result;
        }
    </script>
</body>
</html>

第二个

demo演示

<!DOCTYPE html>
<html>
<head>
    <title>计算器</title>
    <style>
        body {
            background-color: #F5F5F5;
            font-family: Arial, sans-serif;
            text-align: center;
        }
        h1 {
            margin-top: 50px;
            font-size: 30px;
        }
        .calculator {
            background-color: #F5F5F5;
            border-radius: 10px;
            box-shadow: 0px 0px 10px #888888;
            margin: 50px auto;
            padding: 20px;
            width: 300px;
        }
        .display {
            background-color: #FFFFFF;
            border: 1px solid #CCCCCC;
            border-radius: 5px;
            font-size: 24px;
            height: 50px;
            margin-bottom: 10px;
            padding: 10px;
            text-align: right;
            width: 100%;
        }
        .button {
            background-color: #CCCCCC;
            border: none;
            border-radius: 5px;
            color: #000000;
            cursor: pointer;
            font-size: 24px;
            height: 50px;
            margin-bottom: 10px;
            width: 23%;
        }
        .button:hover {
            background-color: #DDDDDD;
        }
        .button:active {
            box-shadow: none;
            background-color: #AAAAAA;
        }
        .operator {
            background-color: #FFA500;
            color: #FFFFFF;
        }
        .equals {
            background-color: #4CAF50;
            color: #FFFFFF;
            width: 48%;
        }
    </style>
</head>
<body>
    <h1>计算器</h1>
    <div class="calculator">
        <div class="display" id="display"></div>
        <button class="button" onclick="addToDisplay('7')">7</button>
        <button class="button" onclick="addToDisplay('8')">8</button>
        <button class="button" onclick="addToDisplay('9')">9</button>
        <button class="button operator" onclick="addToDisplay('+')">+</button>
        <button class="button" onclick="addToDisplay('4')">4</button>
        <button class="button" onclick="addToDisplay('5')">5</button>
        <button class="button" onclick="addToDisplay('6')">6</button>
        <button class="button operator" onclick="addToDisplay('-')">-</button>
        <button class="button" onclick="addToDisplay('1')">1</button>
        <button class="button" onclick="addToDisplay('2')">2</button>
        <button class="button" onclick="addToDisplay('3')">3</button>
        <button class="button operator" onclick="addToDisplay('*')">&times;</button>
        <button class="button" onclick="addToDisplay('0')">0</button>
        <button class="button" onclick="addToDisplay('.')">.</button>
        <button class="button operator" onclick="addToDisplay('/')">&#247;</button>
        <button class="button" onclick="clearDisplay()">C</button>
        <button class="button equals" onclick="calculate()">=</button>
    </div>
    <script>
        function addToDisplay(value) {
            document.getElementById("display").innerHTML += value;
        }
        function clearDisplay() {
            document.getElementById("display").innerHTML = "";
        }
        function calculate() {
            var expression = document.getElementById("display").innerHTML;
            var result = eval(expression);
            document.getElementById("display").innerHTML = result;
        }
    </script>
</body>
</html>