Dakefaker的博客

io流写入数据通过new FileWriter("myfile\\b.txt",false)第二参数传入false就可以在每次写入是覆盖原有内容吗,答案否定的!public class MyBufferTest1 { public static void main(String[] args) throws IOException { //创建字符缓冲输出流对象 BufferedWriter bos = new BufferedWriter(new FileWr