Python Challenge Level 1 ~ 2
Python Challenge，一个Programming Game的Site，没事玩玩。Level-1：
http://www.pythonchallenge.com/pc/def/map.html
字符字典，先翻译hints。
#!/usr/bin/python
import string
"""
Python Challenge, Level 1:
http://www.pythonchallenge.com/pc/def/map.html
"""
def main():
dictionary = {ord(string.ascii_lowercase): \
ord(string.ascii_lowercase[(i+2)%26]) for i in range(26)}
text = 'g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. \
bmgle gr gl zw fylb gq glcddgagclr ylb rfyr''q ufw rfgq rcvr gq qm jmle. \
sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj.'
print(text.translate(dictionary))
if __name__ == '__main__':
main()
根据hints的释义，对url的尾字符串“map”应用该字典转义即可进入下一个level。
Level-2：
http://www.pythonchallenge.com/pc/def/ocr.html
根据hints，查看Page source code后得知是字符查找问题。
#!/usr/bin/python
import urllib.request
import re
"""
Python Challenge, Level 2:
http://www.pythonchallenge.com/pc/def/ocr.html
"""
def main():
url = 'http://www.pythonchallenge.com/pc/def/ocr.html'
resp = urllib.request.urlopen(url).read().decode()
matches = re.findall(r'<!--(.*?)-->', resp, re.DOTALL)
result = ''.join(re.findall(r'', matches))
print(result)
if __name__ == '__main__':
main()
得出答案：equality。替换url，顺利进入下一关。
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