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如果你是想操作文本文件, read: BufferedReader br = new BufferedReader(new FileReader("/aaa/a.txt")); String s = "": while((s=br.readLine())!= null) do ............. writer: PrintWriter pw = new PrintWriter(new FileWriter("/out.txt"[,true])[,true]); pw.println("1111"); 第一个可选参数如果为真,内容为追加到原来的文件后面,第二个可选参数为真为自动清空.否则只有在pw.close()才写入\ 如果是二进制文件: read: DataInputStream dis = new DataInputStream(new BufferedInuputStream(new FileInputStream("/aaa/aaa.txt"))); do............ write: DataOutputStream dos = new DataOutputStream(new BufferedOutuputStream(new FileOutputStream("/aaa/out.txt"))); do............ 如果是随机存取文件 read: RandomAccessFile f = new RandomAccessFile("/aaa/aaa.txt","r"); write: RandomAccessFile f = new RandomAccessFile("/aaa/aaa.txt","rw"); RandomAccessFile f = new RandomAccessFile("/aaa/aaa.txt","r"); java流有60多种,总之你可以自由给合. |
