js中文数字转换

function numberToChinese(num) {
    const digits = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
    const units = ['', '十', '百', '千', '万', '亿'];
    let str = '';
    let unitPos = 0;
    let zero = false;

    while (num > 0) {
        let section = num % 10;
        if (section === 0) {
            if (!zero) {
                zero = true;
                str = digits[0] + str;
            }
        } else {
            zero = false;
            str = digits[section] + units[unitPos] + str;
        }
        unitPos++;
        num = Math.floor(num / 10);
    }

    // 处理特殊情况，例如10-19的数字
    if (str.startsWith('一十')) {
        str = str.substring(1);
    }

    return str;
}

// 示例
console.log(numberToChinese(12345)); // 输出：一万二千三百四十五
console.log(numberToChinese(1001));  // 输出：一千零一