js 数字转汉字

function numberToChinese(num) {
    const digits = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
    const units = ['', '十', '百', '千'];
    let strNum = num.toString();
    let len = strNum.length;
    let result = '';
    let zero = false; // 标记是否需要添加“零”

    for (let i = 0; i < len; i++) {
        let digit = parseInt(strNum[i]);
        let unit = units[len - 1 - i];

        if (digit === 0) {
            zero = true;
        } else {
            if (zero) {
                result += digits[0];
                zero = false;
            }
            result += digits[digit] + unit;
        }
    }

    // 特殊处理“一十”为“十”
    if (result.startsWith('一十')) {
        result = result.slice(1);
    }

    return result;
}

// 示例使用
console.log(numberToChinese(10)); // 输出“十”
console.log(numberToChinese(11)); // 输出“十一”
console.log(numberToChinese(101)); // 输出“一百零一”
console.log(numberToChinese(1001)); // 输出“一千零一”