186_08_IO流_FileInputStream__06_available_skip方法

package TestIO;
import java.io.*;

public class Test01 {
public static void main(String[] args) throws Exception  {
////内容是：abcdefg
String filepath= "D:/test.txt";
//创建流
FileInputStream  fis= new FileInputStream(filepath);

//预估这个文件需要读的字节数
int s = fis.available();//7

//跳过两个字节不读了
fis.skip(2);

int m = fis.available();//5
fis.close();
}
}