好看的前端计算器代码分享（html+css+js制作计算器）

冷不防 2024-03-24 13:36 23阅读 0赞

## 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  
![在这里插入图片描述][6c7148c34ef44e219f143c7e7e3a773e.png]

<!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

![在这里插入图片描述][90d03551398242348c28a78ffe28bebe.png]

<!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('*')">×</button>
            <button class="button" onclick="addToDisplay('0')">0</button>
            <button class="button" onclick="addToDisplay('.')">.</button>
            <button class="button operator" onclick="addToDisplay('/')">÷</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>

[6c7148c34ef44e219f143c7e7e3a773e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/54a833f4bb9c457d9a62c2a0a6fb020e.png
[90d03551398242348c28a78ffe28bebe.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/bcc2a6b27dad47e4bd73ad3e293f6e20.png