如何将文件保存到缓冲区？

file_path = "path/to/file.txt"
buffer_size = 1024  # 缓冲区大小

with open(file_path, "rb") as file:
    buffer = file.read(buffer_size)
    # 处理缓冲区数据

String filePath = "path/to/file.txt";
int bufferSize = 1024;  // 缓冲区大小

try (InputStream inputStream = new FileInputStream(filePath)) {
    byte[] buffer = new byte[bufferSize];
    int bytesRead;
    while ((bytesRead = inputStream.read(buffer)) != -1) {
        // 处理缓冲区数据
    }
} catch (IOException e) {
    e.printStackTrace();
}

#include <iostream>
#include <fstream>
#include <vector>

int main() {
    std::string filePath = "path/to/file.txt";
    std::ifstream file(filePath, std::ios::binary);
    if (file) {
        std::vector<char> buffer(1024);  // 缓冲区大小
        while (file.read(buffer.data(), buffer.size())) {
            // 处理缓冲区数据
        }
        // 处理最后一次读取的数据
        std::streamsize bytesRead = file.gcount();
        // 处理缓冲区数据
    }
    return 0;
}