2020/12/02

public void read() throws lOException {//方法
File file = new File("d:b.txt");
lnputStream is = new FilelnputStream(file);
lnputStreamReader reader = new InputStreamReader(is);
BufferedReader br = new BufferedReader(reader);
//二进制文件按buf大小读，块。文本文件按行读，文件尾，null
String s = "";//每次读取一行，把这一行数据保存字符串中
while((s =br.readLine()) != null {
System.outprintIn(s);//打印
}
//释放资源
br.close();
reader.close();
is.close();
}

1,，今天学习了读取文件

2，没有问题

3，明天继续