使用python显示十六进制文件内容

Posted 2022-11-24 ambercctv

显示十六进制文件的内容

 

#!/usr/bin/python
# -*- coding:utf-8 -*-

#s = "Hello world !!"
#":".join(":02x".format(ord(c)) for c in s)

header=bytes(256);
#header=[]
with open('dsp1.elf',"rb") as f:

	f.seek(0,0)  #SEEK_SET
	header=f.read(256)

def showChr(list1):
	for i in list1:
		if(chr(i).isalnum()):
			vv=i
			print(':2c'.format(vv),end=' ')
		else:
			vv=0
			print(':2x'.format(vv),end=' ')
		
	print(end='\\n')


#Display in decimal format
for i,v in enumerate(header):
	if(i==0):
		print(':>8d::3d'.format(i,v),end='')
	elif (i%16==0):
		print(':>8x::3d'.format(i,v),end='')
	else:
		if((i+1)%16==0):
			print(':3d'.format(v),end='||')
			showChr(header[i-15:i])
		else:
			print(':3d'.format(v),end=' ')
			

#Display in hex format
for i,v in enumerate(header):
	if(i==0):
		print(':>8d::3x'.format(i,v),end='')
	elif (i%16==0):
		print(':>8x::3x'.format(i,v),end='')
	else:
		if((i+1)%16==0):
			print(':3x'.format(v),end='||')
			showChr(header[i-15:i])
		else:
			print(':3x'.format(v),end=' ')
	
	
			

# for i,v in enumerate(header):
	# if(chr(v).isalnum()):
		# vv=v
	# else:
		# vv=0x20
	# if(i==0):
		# print(':>8d::3c'.format(i,(vv)),end='')
	# elif (i%16==0):
		# print(':>8x::3c'.format(i,(vv)),end='')
	# else:
		# if((i+1)%16==0):
			# print(':3c'.format((vv)),end='\\n')
		# else:
			# print(':3c'.format((vv)),end=' ')	



#xy=int.from_bytes(header[0:4],byteorder='little',signed=False)
#print(hex(xy))
#for i,v in enumerate(header):
#	if(i%16==0):
#		print("0,i=1\\n".format(hex(v),i))                  #print('0 and 1'.format('spam', 'eggs'))
#	else:
#		print("0,i=1".format(hex(v),i))
		
hh=str()
for i,v in enumerate(header):
	s="".join(":02x".format(v))
	hh+=s

#print(hh[0:15])
#print(hh[16:31])

#print(header[0:15])
#print(header[16:31])

# % usage 
# msg="%s->%s" %('ans',123)