知识点
1.特殊进制转换
步骤
1.题目描述
菜狗截获了一份报文如下c8e9aca0c6f2e5f3e8c4efe7a1a0d4e8e5a0e6ece1e7a0e9f3baa0e8eafae3f9e4eafae2eae4e3eaebfaebe3f5e7e9f3e4e3e8eaf9eaf3e2e4e6f2,生气地掀翻了桌子(╯°□°)╯︵ ┻━┻
2.两两字符转16进制,并减去128
python
str = 'c8e9aca0c6f2e5f3e8c4efe7a1a0d4e8e5a0e6ece1e7a0e9f3baa0e8eafae3f9e4eafae2eae4e3eaebfaebe3f5e7e9f3e4e3e8eaf9eaf3e2e4e6f2'
flag = ''
s = ''
for i in range(len(str)//2):
flag += chr(int(str[i*2:(i+1)*2],16)-128)
# for i in range(0,len(str),2):
# s = "0x" + str[i] + str[i+1]
# flag += chr(int(s,16)-128)
print(flag)