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【工具】前端js数字金额转中文大写金额

news 2025/1/16 18:59:16

【工具】前端js数字金额转中文大写金额

代码

<!DOCTYPE html>
<html lang="zh">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>金额转大写</title><style>input {margin: 5px;padding: 10px;font-size: 16px;}</style>
</head>
<body><h1>金额转大写</h1><label for="amount">输入金额（整数或小数）：</label><input type="text" id="amount" placeholder="请输入金额" oninput="convertToChinese()" /><br /><label for="amountInWords">大写金额：</label><input type="text" id="amountInWords" readonly /><script>function convertToChinese() {const amountInput = document.getElementById('amount');const amountInWords = document.getElementById('amountInWords');const amount = parseFloat(amountInput.value);if (!isNaN(amount)) {amountInWords.value = toChinaNum(amount);} else {amountInWords.value = '';}}function toChinaNum(number) {if (isNaN(number) || !isFinite(number)) {throw new Error('传值错误');}const fraction = ['角', '分'];const digit = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'];const unit = [['元', '万', '亿'],['', '拾', '佰', '仟']];let num = Math.abs(number);let s = '';const decimalPart = Math.floor((num * 100) % 100);fraction.forEach((item, index) => {s += (digit[Math.floor(decimalPart / (10 ** (1 - index))) % 10] + item).replace(/零./, '');});s = s || '';num = Math.floor(num);for (let i = 0; i < unit[0].length && num > 0; i += 1) {let p = '';for (let j = 0; j < unit[1].length && num > 0; j += 1) {p = digit[num % 10] + unit[1][j] + p;num = Math.floor(num / 10);}s = p.replace(/(零.)*零$/, '').replace(/^$/, '零') + unit[0][i] + s;}return s.replace(/(零.)*零元/, '元').replace(/(零.)+/g, '零').replace(/^元$/, '零元');}</script>
</body>
</html>

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