题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
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 arr = [];
while(line = await readline()){
arr.push(line);
}
let str = arr[0];
let num = parseInt(arr[1]);
console.log(str.slice(0,num));
}()
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