让这个计算器变成HTML
<!DOCTYPE html>
<html>
<head>
<title>计算器</title>
<style>
body {
margin: 0;
padding: 0;
font-family: Arial, sans-serif;
}
<pre><code> .container {
width: 300px;
margin: 50px auto;
border: 1px solid #ccc;
padding: 20px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}
h1 {
text-align: center;
margin-bottom: 20px;
}
form {
display: flex;
flex-wrap: wrap;
justify-content: space-between;
}
input[type="number"] {
padding: 5px;
margin: 5px;
width: calc(50% - 10px);
box-sizing: border-box;
border: 1px solid #ccc;
border-radius: 5px;
font-size: 16px;
text-align: center;
}
button {
padding: 10px;
margin: 5px;
width: calc(50% - 10px);
box-sizing: border-box;
border: none;
border-radius: 5px;
font-size: 16px;
background-color: #4CAF50;
color: #fff;
cursor: pointer;
transition: background-color 0.3s ease;
}
button:hover {
background-color: #3e8e41;
}
.result {
margin-top: 20px;
text-align: center;
font-size: 20px;
font-weight: bold;
}
</style>
</code></pre>
</head>
<body>
<div class="container">
<h1>计算器</h1>
<form>
<input type="number" name="num1" placeholder="请输入第一个数" required>
<input type="number" name="num2" placeholder="请输入第二个数" required>
<button type="submit" name="operator" value="add">+</button>
<button type="submit" name="operator" value="subtract">-</button>
<button type="submit" name="operator" value="multiply">*</button>
<button type="submit" name="operator" value="divide">/</button>
</form>
<div class="result">
<?php
if(isset($_GET['operator'])) {
$num1 = $_GET['num1'];
$num2 = $_GET['num2'];
$operator = $_GET['operator'];
switch ($operator) {
case 'add':
echo $num1 + $num2;
break;
case 'subtract':
echo $num1 - $num2;
break;
case 'multiply':
echo $num1 * $num2;
break;
case 'divide':
if($num2 == 0) {
echo '除数不能为0';
} else {
echo $num1 / $num2;
}
break;
default:
echo '请选择运算符';
break;
}
}
?>
</div>
</div>
</body>
</html>
原文地址: https://www.cveoy.top/t/topic/bgoE 著作权归作者所有。请勿转载和采集!