1,Java中操作方法:
import java.io.*;
public class FileInputStreamTest
{
public static void main(String[] args) throws IOException
{
//创建字节输入流
FileInputStream fis = new FileInputStream("FileInputStreamTest.java");
//创建一个长度为1024的竹筒
byte[] bbuf = new byte[1024];
//用于保存实际读取的字节数
int hasRead = 0;
//使用循环来重复“取水”的过程
while((hasRead = fis.read(bbuf))>0)
{
//取出"竹筒"中(字节),将字节数组转成字符串输入
System.out.println(new String(bbuf,0,hasRead));
}
fis.close();
}
}
import java.io.*;
public class FileReaderTest
{
public static void main(String[] args) throws IOException
{
FileReader fr = null;
try
{
//创建字符输入流
fr = new FileReader("FileReaderTest.java");
//创建一个长度为32的"竹筒"
char[] cbuf = new char[32];
//用于保存实际读取的字符数
int hasRead = 0;
//使用循环来重复“取水”的过程
while((hasRead = fr.read(cbuf))>0)
{
//取出"竹筒"中(字节),将字节数组转成字符串输入
System.out.println(new String(cbuf,0,hasRead));
}
}
catch (IOException ioe)
{
ioe.printStackTrace();
}
finally
{
//关闭文件输入流
if(fr != null)
{
fr.close();
}
}
}
}
2,C#中操作方法:
////// 将 Stream 转成 byte[] /// public byte[] StreamToBytes(Stream stream) { byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); // 设置当前流的位置为流的开始 stream.Seek(0, SeekOrigin.Begin); return bytes; } ////// 将 byte[] 转成 Stream /// public Stream BytesToStream(byte[] bytes) { Stream stream = new MemoryStream(bytes); return stream; } ////// 将 Stream 写入文件 /// public void StreamToFile(Stream stream,string fileName) { // 把 Stream 转换成 byte[] byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); // 设置当前流的位置为流的开始 stream.Seek(0, SeekOrigin.Begin); // 把 byte[] 写入文件 FileStream fs = new FileStream(fileName, FileMode.Create); BinaryWriter bw = new BinaryWriter(fs); bw.Write(bytes); bw.Close(); fs.Close(); } ////// 从文件读取 Stream /// public Stream FileToStream(string fileName) { // 打开文件 FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read); // 读取文件的 byte[] byte[] bytes = new byte[fileStream.Length]; fileStream.Read(bytes, 0, bytes.Length); fileStream.Close(); // 把 byte[] 转换成 Stream Stream stream = new MemoryStream(bytes); return stream; }
以上就是小编为大家带来的Java和C#输入输出流的方法(详解)全部内容了,希望大家多多支持考高分网~



