You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.9 KiB
94 lines
2.9 KiB
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>简单计算器</title>
|
|
<style>
|
|
body {
|
|
font-family: Arial, sans-serif;
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
height: 100vh;
|
|
margin: 0;
|
|
background-color: #f4f4f4;
|
|
}
|
|
.calculator {
|
|
background-color: #fff;
|
|
padding: 20px;
|
|
border-radius: 5px;
|
|
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
|
|
}
|
|
input[type="text"], input[type="number"] {
|
|
width: 100%;
|
|
padding: 10px;
|
|
margin-bottom: 10px;
|
|
border: 1px solid #ddd;
|
|
border-radius: 5px;
|
|
box-sizing: border-box;
|
|
}
|
|
button {
|
|
width: 100%;
|
|
padding: 10px;
|
|
margin-bottom: 10px;
|
|
border: none;
|
|
border-radius: 5px;
|
|
background-color: #5cb85c;
|
|
color: white;
|
|
cursor: pointer;
|
|
}
|
|
button:hover {
|
|
background-color: #4cae4c;
|
|
}
|
|
#result {
|
|
margin-top: 20px;
|
|
padding: 10px;
|
|
background-color: #e8e8e8;
|
|
border-radius: 5px;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div class="calculator">
|
|
<input type="number" id="number1" placeholder="输入第一个数字">
|
|
<input type="number" id="number2" placeholder="输入第二个数字">
|
|
<button onclick="calculate('+')">+</button>
|
|
<button onclick="calculate('-')">-</button>
|
|
<button onclick="calculate('*')">*</button>
|
|
<button onclick="calculate('/')">/</button>
|
|
<div id="result"></div>
|
|
</div>
|
|
|
|
<script>
|
|
function calculate(operator) {
|
|
var num1 = parseFloat(document.getElementById('number1').value);
|
|
var num2 = parseFloat(document.getElementById('number2').value);
|
|
var result;
|
|
|
|
switch (operator) {
|
|
case '+':
|
|
result = num1 + num2;
|
|
break;
|
|
case '-':
|
|
result = num1 - num2;
|
|
break;
|
|
case '*':
|
|
result = num1 * num2;
|
|
break;
|
|
case '/':
|
|
if (num2 !== 0) {
|
|
result = num1 / num2;
|
|
} else {
|
|
result = '除数不能为0';
|
|
}
|
|
break;
|
|
default:
|
|
result = '未知操作';
|
|
}
|
|
|
|
document.getElementById('result').innerText = '结果是: ' + result;
|
|
}
|
|
</script>
|
|
</body>
|
|
</html> |