题解 | #字符串加密#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
    let line = await readline()
    let line2 = await readline()
	// 1. 首先对密钥去重用 set
	// 2. 然后'新建立的字母表中未出现的字母按照正常字母表顺序加入新字母表'，的意思其实就是将去重后的字符串放到字母表之后，再把字母表去重，得到的就是'新字母表'
	// 3. 然后根据字母表对比即可
    let tokens = [...new Set([...line])];
    let a = 'abcdefghijklmnopqrstuvwxyz'
    let arr = [...new Set([...tokens,...a])];
    let output = [];
    [...line2].forEach(v => {
        output.push(arr[a.indexOf(v)])
    })
    console.log(output.join(""))

    
}()