2024-12-03 06:58:02 +00:00
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>输入框自动全选和放大提示</title>
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<style>
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/* 基本样式 */
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body {
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font-family: Arial, sans-serif;
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padding: 20px;
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}
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input {
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width: 200px;
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padding: 8px;
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2024-12-03 06:58:02 +00:00
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font-size: 16px;
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2024-12-04 03:08:24 +00:00
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font-weight: bold;
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font-family: 'Consolas';
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2024-12-03 06:58:02 +00:00
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border: 1px solid #ccc;
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border-radius: 5px;
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margin-bottom: 10px;
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text-align: right;
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}
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input:focus {
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color: black;
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}
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2024-12-04 03:08:24 +00:00
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/* 按钮样式 */
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button {
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padding: 10px 15px;
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font-size: 16px;
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border: none;
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border-radius: 5px;
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background-color: #007bff;
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color: white;
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cursor: pointer;
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margin-right: 10px;
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margin-bottom: 10px;
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transition: background-color 0.3s;
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}
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2024-12-03 06:58:02 +00:00
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/* 提示数字样式 */
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.number-tip {
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position: absolute;
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font-size: 36px;
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font-weight: bold;
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font-family: 'Consolas';
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color: #333;
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background: rgba(255, 255, 255, 0.9);
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border: 1px solid #ccc;
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padding: 10px;
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border-radius: 10px;
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transform: scale(1);
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opacity: 1;
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transition: opacity 0.5s ease, transform 0.5s ease;
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pointer-events: none;
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}
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.number-tip.hide {
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opacity: 0;
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transform: scale(0.5);
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}
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/* 颜色样式 */
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.color-0 {
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color: #153fea;
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}
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.color-1 {
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color: #15f00e;
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}
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.color-2 {
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color: #6963688a;
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}
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/* 错误状态样式 */
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.number-tip.error {
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background: rgba(255, 200, 200, 0.9);
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border-color: #ff0000;
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}
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.form-group {
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margin-bottom: 1rem;
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}
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label {
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/* display: block; */
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margin-bottom: 0.5rem;
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}
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</style>
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</head>
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<body>
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<div class="form-group">
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<label for="number1">数字 1:</label>
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<input type="text" id="number1" placeholder="请输入数字 1">
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</div>
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<div class="form-group">
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<label for="number2">数字 2:</label>
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<input type="text" id="number2" placeholder="请输入数字 2">
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</div>
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<div class="form-group">
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<label for="number3">数字 3:</label>
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<input type="text" id="number3" placeholder="请输入数字 3">
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</div>
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<button id="focusNumber1">激活数字 1 输入框</button>
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<button id="focusNumber2">激活数字 2 输入框</button>
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<button id="focusNumber3">激活数字 3 输入框</button>
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2024-12-03 06:58:02 +00:00
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<div id="numberTip" class="number-tip hide"></div>
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<script>
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// 获取所有的输入框和提示元素
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const inputBoxes = document.querySelectorAll('input[type="text"]');
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const numberTip = document.getElementById('numberTip');
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// 按钮点击事件
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document.getElementById('focusNumber1').addEventListener('click', () => {
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document.getElementById('number1').focus();
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});
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document.getElementById('focusNumber2').addEventListener('click', () => {
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document.getElementById('number2').focus();
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});
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document.getElementById('focusNumber3').addEventListener('click', () => {
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document.getElementById('number3').focus();
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});
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// 添加输入范围配置
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const inputRanges = {
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0: { min: 0, max: 100 }, // 第一个输入框：0-100
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1: { min: 100, max: 1000 }, // 第二个输入框：100-1000
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2: { min: 1000, max: 10000 } // 第三个输入框：1000-10000
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};
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// 为所有输入框添加事件监听
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inputBoxes.forEach((inputBox, index) => {
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// 输入框获取焦点时
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inputBox.addEventListener('focus', (event) => {
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event.target.select();
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const value = event.target.value;
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if (value !== '') {
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const rawValue = value.replace(/\s/g, '');
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showNumberTip(formatNumberWithColor(rawValue), inputBox, index);
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}
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});
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inputBox.addEventListener('input', (event) => {
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const value = event.target.value;
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if (value !== '') {
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const rawValue = value.replace(/\s/g, '');
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const numValue = parseFloat(rawValue);
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const range = inputRanges[index];
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// 只检查最大值，允许临时小于最小值
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if (!isNaN(numValue) && numValue <= range.max) {
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// 保存有效值
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event.target.value = formatNumber(rawValue);
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event.target.dataset.lastValidValue = event.target.value;
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// 显示放大提示
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showNumberTip(formatNumberWithColor(rawValue), inputBox, index, false);
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} else if (!isNaN(numValue) && numValue > range.max) {
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// 如果超出最大值，显示错误提示
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showNumberTip(
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`超出最大值 ${range.max}`,
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inputBox,
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index,
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true
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);
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// 还原到上一个有效值或清空
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if (event.target.dataset.lastValidValue) {
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event.target.value = event.target.dataset.lastValidValue;
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} else {
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event.target.value = '';
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}
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}
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}
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});
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// 输入框失去焦点时
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inputBox.addEventListener('blur', (event) => {
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const value = event.target.value;
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let finalValue = value;
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// 处理小数点
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if (value.includes('.')) {
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const [integerPart, decimalPart] = value.split('.');
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if (!decimalPart || decimalPart.replace(/[^\d]/g, '').length === 0) {
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finalValue = integerPart;
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}
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}
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// 检查最小值
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if (finalValue !== '') {
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const numValue = parseFloat(finalValue.replace(/\s/g, ''));
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const range = inputRanges[index];
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if (!isNaN(numValue)) {
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if (numValue < range.min) {
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// 如果小于最小值，显示错误提示
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showNumberTip(
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`不能小于最小值 ${range.min}`,
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inputBox,
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index,
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true
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);
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// 设置为最小值
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event.target.value = range.min;
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} else if (numValue <= range.max) {
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// 值在有效范围内
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event.target.value = finalValue;
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// 隐藏提示
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numberTip.classList.add('hide');
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}
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}
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}
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});
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});
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// 修改数字格式化函数，移除输入框的颜色格式化
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function formatNumber(value) {
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// 分割整数部分和小数部分
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const [integerPart, decimalPart] = value.split('.');
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// 格式化整数部分，只添加空格，不添加颜色
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const formattedInteger = integerPart
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.replace(/[^\d]/g, '')
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.replace(/\B(?=(\d{3})+(?!\d))/g, ' ');
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// 格式化小数部分，只添加空格，不添加颜色
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if (decimalPart !== undefined) {
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const formattedDecimal = decimalPart
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.replace(/[^\d]/g, '')
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.replace(/(\d{3})/g, '$1 ')
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.trim();
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return `${formattedInteger}.${formattedDecimal}`;
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}
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return formattedInteger;
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}
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// 修改彩色格式化函数
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function formatNumberWithColor(value) {
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if (!value.includes('.')) {
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// 如果没有小数点，从右向左添加颜色
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return value
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.replace(/[^\d]/g, '')
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.replace(/\B(?=(\d{3})+(?!\d))/g, ' ')
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.split(' ')
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.map((group, index, array) => `<span class="color-${(array.length - 1 - index) % 3}">${group}</span>`)
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.join(' ');
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}
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// 有小数点的情况
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const [integerPart, decimalPart] = value.split('.');
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// 整数部分：从右向左添加颜色
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const coloredInteger = integerPart
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.replace(/[^\d]/g, '')
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.replace(/\B(?=(\d{3})+(?!\d))/g, ' ')
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.split(' ')
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.map((group, index, array) => `<span class="color-${(array.length - 1 - index) % 3}">${group}</span>`)
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.join(' ');
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// 小数部分：从左向右添加颜色
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const coloredDecimal = decimalPart
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.replace(/[^\d]/g, '')
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.replace(/(\d{3})/g, '$1 ')
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.trim()
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.split(' ')
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.map((group, index) => `<span class="color-${index % 3}">${group}</span>`)
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.join(' ');
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return `${coloredInteger}.${coloredDecimal}`;
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}
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// 添加一个变量来存储定时器
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let hideTimer;
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// 更新显示提示的函数
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function showNumberTip(value, inputBox, index, isError = false) {
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if (hideTimer) {
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clearTimeout(hideTimer);
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}
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numberTip.innerHTML = value;
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numberTip.classList.toggle('error', isError);
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const rect = inputBox.getBoundingClientRect();
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const tipRect = numberTip.getBoundingClientRect();
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let left = rect.left;
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let top = rect.bottom;
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if (top + tipRect.height > window.innerHeight) {
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top = rect.top - tipRect.height;
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}
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numberTip.style.left = `${left}px`;
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numberTip.style.top = `${top}px`;
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numberTip.classList.remove('hide');
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hideTimer = setTimeout(() => {
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numberTip.classList.add('hide');
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}, 6000);
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}
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</script>
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</body>
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</html>
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