如何在EOF之前读取用户输入？

#!/bin/bash

echo "请输入内容，按 Ctrl+D 结束输入："

while read line; do
  echo "收到：$line"
done

import sys

print("请输入内容，按 Ctrl+D 结束输入：")

for line in sys.stdin:
    print(f"收到：{line.strip()}")

#include <stdio.h>

int main() {
    char input[100];

    printf("请输入内容，按 Ctrl+D 结束输入：\n");

    while (fgets(input, sizeof(input), stdin) != NULL) {
        printf("收到：%s", input);
    }

    return 0;
}

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入内容，按 Ctrl+D 结束输入：");

        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            System.out.println("收到：" + line);
        }

        scanner.close();
    }
}