家有宝宝的家长，给小孩出练习题的利器，可以剩下一大笔费用。该软件来自吾爱论坛的热心网友haixiang1214。

<html>

<head>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
}

h1 {
text-align: center;
}

.container {
display: flex;
flex-direction: column;
align-items: center;
}

.options {
display: flex;
line-height: 25px;
}

.options label {
display: block;
}

.questions {
display: grid;
gap: 20px;
width: 80%;
padding: 10px;
}

.question-item {
font-size: 24px;
font-weight: bold;
text-align: left;
}

.print {
margin-top: 20px;
}

.options div {
margin-right: 20px;
background-color: #8080801a;
}
</style>
</head>

<body>
<h1>小学数学出题界面</h1>
<div class="container">
<div class="options">
<div>
<p>请选择运算符：</p>
<label><input type="checkbox" id="add" checked> 加法</label>
<label><input type="checkbox" id="sub"> 减法</label>
<label><input type="checkbox" id="mul"> 乘法</label>
<label><input type="checkbox" id="div"> 除法</label>
</div>
<div>
<p>请选择出题数量：</p>
<input type="number" id="num" min="1" max="10" value="5">
<button id="gen">生成题目</button>
</div>
<div>
<p>请选择数字范围：</p>
<label>最小值：<input type="number" id="min" min="1" max="9" value="1"></label>
<label>最大值：<input type="number" id="max" min="2" max="10" value="10"></label>
</div>
<div>
<p>设置题目列数：</p>
<input type="number" id="columns" min="1" max="10" value="3">
</div>
</div>
<hr>
<button class="print">打印题目</button>
<div class="questions"></div>
</div>
<script>
var add = document.getElementById("add");
var sub = document.getElementById("sub");
var mul = document.getElementById("mul");
var div = document.getElementById("div");
var num = document.getElementById("num");
var min = document.getElementById("min");
var max = document.getElementById("max");
var columns = document.getElementById("columns");
var gen = document.getElementById("gen");
var questions = document.getElementsByClassName("questions")[0];

var operators = ["+", "-", "×", "÷"];
var functions = [
function (a, b) { return a + b; },
function (a, b) { return a - b; },
function (a, b) { return a * b; },
function (a, b) { return a / b; }
];

function randomInt(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}

function generateQuestions() {
questions.innerHTML = "";
questions.style.gridTemplateColumns = `repeat(${columns.value}, 1fr)`;

var selectedOperators = [];
if (add.checked) selectedOperators.push(0);
if (sub.checked) selectedOperators.push(1);
if (mul.checked) selectedOperators.push(2);
if (div.checked) selectedOperators.push(3);

var questionNum = parseInt(num.value);
var minValue = parseInt(min.value);
var maxValue = parseInt(max.value);

if (selectedOperators.length == 0) {
alert("请至少选择一个运算符！");
return;
}

if (minValue >= maxValue) {
alert("最小值应该小于最大值！");
return;
}

for (var i = 0; i < questionNum; i++) {
var opIndex = randomInt(0, selectedOperators.length - 1);
var op = operators[selectedOperators[opIndex]];
var func = functions[selectedOperators[opIndex]];

var a, b, result;
do {
a = randomInt(minValue, maxValue);
b = randomInt(minValue, maxValue);
result = func(a, b);
} while (!Number.isInteger(result) || result <= 0);

var questionItem = document.createElement("div");
questionItem.className = "question-item";
questionItem.textContent = a + " " + op + " " + b + " = ";
questions.appendChild(questionItem);
}
}

gen.addEventListener("click", generateQuestions);
</script>
</body>

</html>

不懂代码的可以直接https://www.52pojie.cn/thread-1845482-1-1.html 去查看下载