逐行读取输入

import sys

for line in sys.stdin:
    # 对每一行进行处理
    print(line.strip())

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String line;
        while ((line = reader.readLine()) != null) {
            // 对每一行进行处理
            System.out.println(line);
        }
    }
}

#include<iostream>
#include<string>

int main() {
    std::string line;
    while (std::getline(std::cin, line)) {
        // 对每一行进行处理
        std::cout<< line<< std::endl;
    }
    return 0;
}

process.stdin.setEncoding('utf8');
process.stdin.on('readable', () => {
    let chunk;
    while ((chunk = process.stdin.read()) !== null) {
        // 对每一行进行处理
        console.log(chunk.trim());
    }
});