读取多行输入的问题

lines = []
while True:
    line = input()
    if line:
        lines.append(line)
    else:
        break

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        StringBuilder sb = new StringBuilder();
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (line.isEmpty()) {
                break;
            }
            sb.append(line).append("\n");
        }
        String input = sb.toString();
        // 处理输入数据
    }
}

#include <iostream>
#include <string>

int main() {
    std::string line;
    std::string input;
    while (std::getline(std::cin, line)) {
        if (line.empty()) {
            break;
        }
        input += line + "\n";
    }
    // 处理输入数据
    return 0;
}