const readline = require('readline'); const rl = readline.createInterface({ input: process.stdin, output: process.stdout }); // 定义两个保存输入值的变量 let [a, b, num,sum, resStr] = [undefined, undefined, 0, 0, ''] rl.on('line', function (line) { num++ if(num === 1) { a = line.split('').map(Number) }else if(nu...