相关疑难解决方法(0)

我收到了这个生成文件校验和的python脚本:

import sys,os

if __name__=="__main__":
#filename=os.path.abspath(sys.argv[1])
#filename=r"H:\Javier Ortiz\559-7 From Pump.bin"
cksum=0
offset=0
pfi=open(filename,'rb')
while 1:
  icks=0
  chunk=pfi.read(256)
  if not chunk:  break     #if EOF exit loop

  for iter in chunk:
    icks+=ord(iter)
    print ord(iter)
  cksum=(cksum+icks) & 0xffff
pfi.close()
print "cksum=0x%4.4x"%cksum

而我正在尝试将其转换为Java,但我没有得到相同的结果.

这是我的Java代码:

import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

public class ChecksumCalculator {

private ChecksumCalculator() {
}

public static int getChecksum(File file) {
    int cksum = 0;
    FileInputStream fis = null;
    BufferedInputStream bis = null;
    DataInputStream dis …