Java按行读取txt,并在每行末尾加上@@ns字符串

try {

BufferedReader br = new BufferedReader(new FileReader(new File("aa.txt")))

String temp = null

StringBuffer sbf = new StringBuffer()

while ((temp = br.readLine()) != null) {

sbf.append(temp).append("@@ns")

}

br.close()

System.out.println(sbf.toString())

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace()

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace()

}



FileOutputStream out = new FileOutputStream("test.txt",true)

构造函数里面的第二个参数为true时，代表从文件的结尾开始写，为false时，代表从头开始写

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