63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
// 向右移位
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const shiftRight = (number, n) => {
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let digit = n;
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digit = parseInt(digit, 10);
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const value = number.toString().split('e');
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return +`${value[0]}e${value[1] ? +value[1] + digit : digit}`;
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};
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// 向左移位
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const shiftLeft = (number, n) => {
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let digit = n;
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digit = parseInt(digit, 10);
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const value = number.toString().split('e');
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return +`${value[0]}e${value[1] ? +value[1] - digit : -digit}`;
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};
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// 阿拉伯数字转大写中文金额
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const digitUppercase = (arabic) => {
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let n = arabic;
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const fraction = ['角', '分'];
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const digit = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'];
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const unit = [
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['元', '万', '亿', '万亿', '亿亿'],
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['', '拾', '佰', '仟'],
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];
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const head = n < 0 ? '负数' : '';
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n = Math.abs(n);
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let s = '';
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const list = [];
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for (let i = 0; i < fraction.length; i++) {
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const fractionStr = digit[Math.floor(shiftRight(n, 1 + i)) % 10] + fraction[i];
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console.log('fractionStr: ', fractionStr);
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list.push(fractionStr);
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if (list[0] === '零角' && list[1] !== '零分') {
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s += `零${list[1] || ''}`;
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} else if (list[0] === '零角' && list[1] === '零分') {
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console.log(list);
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s = '';
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} else {
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s += fractionStr.replace(/零./, '');
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}
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}
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s = s || '整';
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n = Math.floor(n);
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for (let i = 0; i < unit[0].length && n > 0; i++) {
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let p = '';
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for (let j = 0; j < unit[1].length && n > 0; j++) {
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p = digit[n % 10] + unit[1][j] + p;
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n = Math.floor(shiftLeft(n, 1));
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}
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s = p.replace(/(零.)*零$/, '').replace(/^$/, '零') + unit[0][i] + s;
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}
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return (
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head +
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s
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.replace(/(零.)*零元/, '元')
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.replace(/(零.)+/g, '零')
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.replace(/^整$/, '零元整')
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);
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};
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export default digitUppercase;
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