/**
* @description 数字金额转大写
* @param n 数字金额
* @return {string} 大写金额
* @example convertCurrency(88888.88) => '捌万捌仟捌佰捌拾捌元捌角捌分'
*/
const convertCurrency = n => {
const fraction = ['角', '分'];
const digit = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'];
const unit = [
['元', '万', '亿'],
['', '拾', '佰', '仟']
];
const head = n < 0 ? '欠' : '';
n = Math.abs(n);
let s = '';
for (let i = 0; i < fraction.length; i++) {
s += (digit[Math.floor(n * 10 * Math.pow(10, i)) % 10] + fraction[i]).replace(/零./, '');
}
s = s || '整';
n = Math.floor(n);
for (let i = 0; i < unit[0].length && n > 0; i++) {
let p = '';
for (let j = 0; j < unit[1].length && n > 0; j++) {
p = digit[n % 10] + unit[1][j] + p;
n = Math.floor(n / 10);
}
s = p.replace(/(零.)*零$/, '').replace(/^$/, '零') + unit[0][i] + s;
}
return (
head +
s
.replace(/(零.)*零元/, '元')
.replace(/(零.)+/g, '零')
.replace(/^整$/, '零元整')
);
};
export default convertCurrency;