const MyNumberConvertion = require('./my-number-convertion'); //引入转换器
//初始化的字符串，字符串长度就是进制，从左到右，0对应数值0，最后一个字符~对应数值63
const chars64 = '0123456789abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ-~';
//初始化转换器
const convertion64 = new MyNumberConvertion(chars64);
let str64 = '445306828';
let num64 = convertion64.transfer(str64);//将数字转换成64进制
let source64 = convertion64.revert(num64);//将64进制字符还原成原始数据
console.log(`原始数据：${str64}`);
console.log(`转换后：${num64}`)
console.log(`还原后：${source64}`);