币种大写算法（js）

Posted 2021-01-11 时空旅人

export function RMBFitter(n){

/**金额大写的转换 */

var fraction = [‘角‘, ‘分‘];

var digit = [‘零‘, ‘壹‘, ‘贰‘, ‘叁‘, ‘肆‘, ‘伍‘, ‘陆‘, ‘柒‘, ‘捌‘, ‘玖‘];

var unit = [ [‘元‘, ‘万‘, ‘亿‘], [‘‘, ‘拾‘, ‘佰‘, ‘仟‘] ];

//var head = n < 0? ‘欠‘: ‘‘;

n = Math.abs(n);

var s = ‘‘;

for (var i = 0; i < fraction.length; i++)

{

// console.log(digit[Math.floor(n * 10 * Math.pow(10, i)) % 10] + fraction[i]);

s += (digit[Math.floor(n * Math.pow(10, i+1)) % 10] + fraction[i]).replace(/零./, ‘‘);

}

s = s || ‘整‘;

n = Math.floor(n);

for (var i = 0; i < unit[0].length && n > 0; i++)

{

var p = ‘‘;

for (var 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‘);

var result = s.replace(/(零.)*零元/, ‘元‘).replace(/(零.)+/g, ‘零‘).replace(/^整$/, ‘零元整‘);

if(result.indexOf(‘分‘)>0&&result.indexOf(‘角‘)<0){

result = result.replace(/元/g, ‘元零‘);

}

return result;

}