本次分享吧收集整理的精品源码资源是小学生数学出题源代码，一键生成加减乘除混合运算，支持打印，测试非常好用，小学生有福啦，源代码如下。
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>小学数学出题_www.fx8y.com</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
}
.header {
background-color: #4CAF50;
color: white;
text-align: center;
padding: 1em;
}
.options {
display: flex;
flex-wrap: wrap;
justify-content: space-around;
padding: 1em;
}
.questions {
display: flex;
flex-wrap: wrap;
justify-content: space-around;
padding: 1em;
}
.question {
margin: 0.5em;
padding: 0.5em;
border: 1px solid #ddd;
border-radius: 5px;
width: 45%;
box-sizing: border-box;
}
@media (max-width: 768px) {
.question {
width: 100%;
}
}
</style>
<title>小学数学出题器_www.fx8y.com</title>
</head>
<body>
<div class="header">
<h1>小学数学出题器</h1>
</div>
<div class="options">
<label>
<input type="checkbox" id="additionCheckbox" checked> 加法
</label>
<label>
<input type="checkbox" id="subtractionCheckbox" checked> 减法
</label>
<label>
<input type="checkbox" id="multiplicationCheckbox" checked> 乘法
</label>
<label>
<input type="checkbox" id="divisionCheckbox" checked> 除法
</label>
<label for="numDigits">数字个数：</label>
<input type="number" id="numDigits" value="2" min="1">
<label for="numQuestions">出题数量：</label>
<input type="number" id="numQuestions" value="10" min="1">
<label for="minNumber">最小数字：</label>
<input type="number" id="minNumber" value="1" min="1">
<label for="maxNumber">最大数字：</label>
<input type="number" id="maxNumber" value="10" min="1">
<button onclick="generateQuestions()">生成题目</button>
<button onclick="printQuestions()">一键打印</button>
</div>
<div class="qbox">
<div class="questions" id="questionsContainer">
<!-- 题目展示在这里 -->
</div></div>
<script>
function generateQuestions() {
const addition = document.getElementById('additionCheckbox').checked;
const subtraction = document.getElementById('subtractionCheckbox').checked;
const multiplication = document.getElementById('multiplicationCheckbox').checked;
const division = document.getElementById('divisionCheckbox').checked;
const numDigits = parseInt(document.getElementById('numDigits').value);
const numQuestions = parseInt(document.getElementById('numQuestions').value);
const minNumber = parseInt(document.getElementById('minNumber').value);
const maxNumber = parseInt(document.getElementById('maxNumber').value);
const questionsContainer = document.getElementById('questionsContainer');
questionsContainer.innerHTML = '';
for (let i = 0; i < numQuestions; i++) {
const questionElement = document.createElement('div');
questionElement.className = 'question';
const question = generateQuestion(addition, subtraction, multiplication, division, numDigits, minNumber, maxNumber);
questionElement.textContent = `题${i + 1}: ${question}=______`;
questionsContainer.appendChild(questionElement);
}
}
function generateQuestion(addition, subtraction, multiplication, division, numDigits, minNumber, maxNumber) {
const numbers = [];
for (let i = 0; i < numDigits; i++) {
const randomNum = Math.floor(Math.random() * (maxNumber - minNumber + 1)) + minNumber;
numbers.push(randomNum);
}
const operators = [];
if (addition) operators.push('+');
if (subtraction) operators.push('-');
if (multiplication) operators.push('*');
if (division) operators.push('÷');
const operator = operators[Math.floor(Math.random() * operators.length)];
let question = numbers.join(` ${operator} `);
if (operator === '÷') {
const result = numbers.reduce((a, b) => a / b);
if (result % 1 !== 0 || result < 0) {
return generateQuestion(addition, subtraction, multiplication, division, numDigits, minNumber, maxNumber);
}
} else if (operator === '-') {
const result = numbers.reduce((a, b) => a - b);
if (result < 0) {
return generateQuestion(addition, subtraction, multiplication, division, numDigits, minNumber, maxNumber);
}
}
return question;
}
function printQuestions() {
window.print();
}
</script>
</body>
</html>
原文链接：https://www.fx8y.com/code/796.html，转载请注明出处。
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