https://www.nowcoder.com/practice/e4af1fe682b54459b2a211df91a91cf3
js實現(xiàn)
const rl = require("readline").createInterface({ input: process.stdin });
let input_data = [];
rl.on("line", function (input) {
input_data.push(input)
if (input_data.length === 2) {
let [kwords,words]=input_data
let origin_words='abcdefghijklmnopqrstuvwxyz'
kwords=kwords.toLowerCase()+origin_words
let key_arr=[...new Set(kwords.split(''))]
let map=new Map()
for(let i=0;i<origin_words.length;i++){
map.set(origin_words[i],key_arr[i])
}
console.log(Array.from(words.split(''),(x)=>{
if(x.toLowerCase()===x){
return map.get(x)
}else{
return map.get(x.toLowerCase()).toUpperCase()
}
}).join(''))
}
});
