Io流总结
1.读写字符文件
BufferedReader br =new BufferedReader(new FileReader(文件路径));
BufferedWriter bw=new BufferedWriter(new FileWriter(文件路径));
2.读写字节文件
DateInputStream dis=new DateInputStream(new FileInputStream(文件路径));
DateOutputStream dos=new DateInputStream(new FileInputStream(文件路径));
3.读取整个字符文件
String str=null;
while((str=br.readline())!=null){
system.out.println(str)
}
4.读取整个字节文件
int b;
while((b=dis.read())!=-1){
system.out.println(b);
}