Java.io.OutputStreamWriter.close() 方法 Java.io.OutputStream.write Byte() 方法 Java.io.OutputStreamWriter.flush() 方法 Java.io.OutputStreamWriter.close() 方法 package com.codingdict; import java.io.*; public class OutputStreamWriterDemo { public static void main(String[] args) { try { // create a new OutputStreamWriter OutputStream os = new FileOutputStream("test.txt"); OutputStreamWriter writer = new OutputStreamWriter(os); // create a new FileInputStream to read what we write FileInputStream in = new FileInputStream("test.txt"); // write something in the file writer.write(70); // flush the stream writer.flush(); // read what we write System.out.println("" + (char) in.read()); // close the stream System.out.println("Closing Stream..."); writer.close(); System.out.println("Stream closed."); } catch (Exception ex) { ex.printStackTrace(); } } } Java.io.OutputStream.write Byte() 方法 Java.io.OutputStreamWriter.flush() 方法