Java IO 操作文件

BufferedWriter bw = new BufferedWriter(new FileWriter("G:/新建文件夹/add2.txt", true));// 文件追加
long begin4 = System.currentTimeMillis();
for (int i = 0; i < 100000; i++) {
	bw.write("测试java 文件操作\r\n");
}
bw.flush();
bw.close();
long end4 = System.currentTimeMillis();
System.out.println("BufferedWriter执行耗时:" + (end4 - begin4) + " 豪秒");