97 lines
2.3 KiB
TypeScript
97 lines
2.3 KiB
TypeScript
import { isEmpty } from '@/utils/CommonUtils';
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/*
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* @Author: liqiang
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* @Date: 2020-11-27 16:12:36
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* @LastEditTime: 2021-03-30 15:52:01
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* @LastEditors: Please set LastEditors
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* @Description: 数字工具类
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* @FilePath: \ebtp-cloud-frontend\src\utils\NumberUtils.ts
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*/
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/**
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* 金额正则
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*/
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const amountReplace = /(\d)(?=(\d{3})+(?!\d))/g;
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function getZero(num: number) {
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let number = '';
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for (let i = 0; i < num; i++) {
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number += '0';
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}
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return number;
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}
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/**
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* 数字转换金额格式
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* @param money 数字
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* @param retain 小数点后保留几位
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*/
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export function digitalConversionAmount(money: string, retain: number) {
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let zero = getZero(retain);
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if (isEmpty(money)) {
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return money;
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}
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if (money.indexOf('.') === -1) {
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money = money.replace(amountReplace, '$1,') + '.' + zero;
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} else {
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let division = money.split('.');
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money = division[0].replace(amountReplace, '$1,');
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money = money + '.' + (division[1] + zero).substr(0, retain);
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}
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return money;
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};
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/**
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* 根据传入的数字保留几位小数
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* @param number 数字
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* @param retain 小数点后保留几位
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*/
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export function enterTheNumberToRetainTheDecimal(number: any, retain: number) {
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if (isEmpty(number)) {
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return number;
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}
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let index = String(number).indexOf('.');
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if (index === -1) {
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return number;
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} else {
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number = String(number).substring(0, index + (retain + 1));
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return number;
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}
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}
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/**
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* 加法 两个数相加
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* @param arg1
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* @param arg2
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* @returns
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*/
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export function algebraicAddition(arg1: number, arg2: number) {
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let r1, r2, m, c;
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try {
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r1 = arg1.toString().split(".")[1].length;
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}
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catch (e) {
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r1 = 0;
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}
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try {
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r2 = arg2.toString().split(".")[1].length;
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}
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catch (e) {
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r2 = 0;
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}
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c = Math.abs(r1 - r2);
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m = Math.pow(10, Math.max(r1, r2));
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if (c > 0) {
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let cm = Math.pow(10, c);
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if (r1 > r2) {
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arg1 = Number(arg1.toString().replace(".", ""));
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arg2 = Number(arg2.toString().replace(".", "")) * cm;
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} else {
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arg1 = Number(arg1.toString().replace(".", "")) * cm;
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arg2 = Number(arg2.toString().replace(".", ""));
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}
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} else {
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arg1 = Number(arg1.toString().replace(".", ""));
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arg2 = Number(arg2.toString().replace(".", ""));
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}
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return (arg1 + arg2) / m;
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}
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