• 日期: 2024-08-12 15:30:07
  • 标签: 常规
<!DOCTYPE html>
<html>
<head>
 <title>Онлайн-калькулятор</title>
 <meta charset='UTF-8'>
 <meta name='viewport' content='width=device-width, initial-scale=1.0'>
 <style>
 body {
 font-family: Arial, sans-serif;
 margin: 0;
 padding: 0;
 }
 h1 {
 text-align: center;
 }
 form {
 margin: 0 auto;
 max-width: 500px;
 display: flex;
 flex-wrap: wrap;
 justify-content: center;
 align-items: center;
 background-color: #f1f1f1;
 padding: 20px;
 border-radius: 10px;
 box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
 }
 input[type=text] {
 font-size: 16px;
 padding: 10px;
 margin: 10px;
 border-radius: 5px;
 border: none;
 box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
 text-align: center;
 width: 30%;
 }
 input[type=submit] {
 font-size: 16px;
 padding: 10px 20px;
 margin: 10px;
 border-radius: 5px;
 border: none;
 background-color: #4CAF50;
 color: white;
 box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
 cursor: pointer;
 }
 input[type=reset] {
 font-size: 16px;
 padding: 10px 20px;
 margin: 10px;
 border-radius: 5px;
 border: none;
 background-color: #f44336;
 color: white;
 box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
 cursor: pointer;
 }
 button {
 font-size: 16px;
 padding: 10px 20px;
 margin: 10px;
 border-radius: 5px;
 border: none;
 background-color: #008CBA;
 color: white;
 box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
 cursor: pointer;
 }
 table {
 margin: 0 auto;
 border-collapse: collapse;
 border-radius: 10px;
 box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
 }
 th, td {
 padding: 10px;
 border: 1px solid black;
 }
 th {
 background-color: #f2f2f2;
 }
 </style>
</head>
<body>
 <h1>Онлайн-калькулятор</h1>
 <form name='myform' onsubmit='return false'>
 <input type='text' id='input1' placeholder='Введите число'>
 <input type='text' id='input2' placeholder='Введите второе число'>
 <br>
 <button id='add'>+</button>
 <button id='sub'>-</button>
 <button id='mul'>*</button>
 <button id='div'>/</button>
 <button id='mod'>%</button>
 <button id='sqrt'>√</button>
 <button id='pow'>^</button>
 <button id='sin'>sin</button>
 <button id='cos'>cos</button>
 <button id='tan'>tan</button>
 <br>
 <input type='reset' value='Очистить'>
 </form>
 <br>
 <table id='result'>
 <tr>
 <th>Операция</th>
 <th>Первое число</th>
 <th>Второе число</th>
 <th>Результат</th>
 </tr>
 </table>
 <script>
 const add = document.querySelector('#add');
 const sub = document.querySelector('#sub');
 const mul = document.querySelector('#mul');
 const div = document.querySelector('#div');
 const mod = document.querySelector('#mod');
 const sqrt = document.querySelector('#sqrt');
 const pow = document.querySelector('#pow');
 const sin = document.querySelector('#sin');
 const cos = document.querySelector('#cos');
 const tan = document.querySelector('#tan');
 const input1 = document.querySelector('#input1');
 const input2 = document.querySelector('#input2');
 const result = document.querySelector('#result');
<p>add.addEventListener('click', function(){
let num1 = Number(input1.value);
let num2 = Number(input2.value);
let res = num1 + num2;
let operation = '+';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = num2;
cell4.innerHTML = res;
});</p>
<p>sub.addEventListener('click', function(){
let num1 = Number(input1.value);
let num2 = Number(input2.value);
let res = num1 - num2;
let operation = '-';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = num2;
cell4.innerHTML = res;
});</p>
<p>mul.addEventListener('click', function(){
let num1 = Number(input1.value);
let num2 = Number(input2.value);
let res = num1 * num2;
let operation = '*';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = num2;
cell4.innerHTML = res;
});</p>
<p>div.addEventListener('click', function(){
let num1 = Number(input1.value);
let num2 = Number(input2.value);
let res = num1 / num2;
let operation = '/';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = num2;
cell4.innerHTML = res;
});</p>
<p>mod.addEventListener('click', function(){
let num1 = Number(input1.value);
let num2 = Number(input2.value);
let res = num1 % num2;
let operation = '%';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = num2;
cell4.innerHTML = res;
});</p>
<p>sqrt.addEventListener('click', function(){
let num1 = Number(input1.value);
let res = Math.sqrt(num1);
let operation = '√';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = '';
cell4.innerHTML = res;
});</p>
<p>pow.addEventListener('click', function(){
let num1 = Number(input1.value);
let num2 = Number(input2.value);
let res = Math.pow(num1, num2);
let operation = '^';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = num2;
cell4.innerHTML = res;
});</p>
<p>sin.addEventListener('click', function(){
let num1 = Number(input1.value);
let res = Math.sin(num1 * Math.PI / 180);
let operation = 'sin';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = '';
cell4.innerHTML = res;
});</p>
<p>cos.addEventListener('click', function(){
let num1 = Number(input1.value);
let res = Math.cos(num1 * Math.PI / 180);
let operation = 'cos';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = '';
cell4.innerHTML = res;
});</p>
<p>tan.addEventListener('click', function(){
let num1 = Number(input1.value);
let res = Math.tan(num1 * Math.PI / 180);
let operation = 'tan';
let row = result.insertRow(-1);
let cell1 = row.insertCell(0);
let cell2 = row.insertCell(1);
let cell3 = row.insertCell(2);
let cell4 = row.insertCell(3);
cell1.innerHTML = operation;
cell2.innerHTML = num1;
cell3.innerHTML = '';
cell4.innerHTML = res;
});</p>
 </script>
</body>
</html>
Онлайн-калькулятор: сложение, вычитание, умножение, деление, модуль, квадратный корень, возведение в степень, синус, косинус и тангенс

原文地址: https://www.cveoy.top/t/topic/m8nS 著作权归作者所有。请勿转载和采集!

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