{"id":2458,"date":"2015-08-02T13:51:00","date_gmt":"2015-08-02T05:51:00","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=2458"},"modified":"2015-08-02T13:51:00","modified_gmt":"2015-08-02T05:51:00","slug":"%e7%94%a8python%e5%ae%9e%e7%8e%b0%e7%9a%84rot13%e7%bc%96%e8%a7%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/2458.html","title":{"rendered":"\u7528Python\u5b9e\u73b0\u7684rot13\u7f16\u89e3\u7801"},"content":{"rendered":"
#\u4e00\u76ee\u4e86\u7136\u7248<\/h6>\n
def rot13(s):\n    result = \"\"\n    for v in s:\n        c = ord(v)\n        if c >= ord('a') and c <= ord('z'):\n            if c > ord('m'):\n                c -= 13\n            else:\n                c += 13\n        elif c >= ord('A') and c <= ord('Z'):\n            if c > ord('M'):\n                c -= 13\n            else:\n                c += 13\n        result += chr(c)\n    return result<\/pre>\n
#\u5c0f\u5199\u5b57\u6bcd(\u4e0d\u5b8c\u5168\u7248)<\/h6>\n
def rot13(s):\n    chars = \"abcdefghijklmnopqrstuvwxyz\"\n    trans = chars[13:] + chars[:13]\n    rot_char = lambda c: trans[chars.find(c)] if chars.find(c)>-1 else c\n    return ''.join( rot_char(c) for c in s )<\/pre>\n
import string\ndef make_rot_n(n):\n\tlc = string.lowercase\n\ttrans = string.maketrans(lc, lc[n:] + lc[:n])\n\treturn lambda s: string.translate(s, trans)\nrot13 = make_rot_n(13)\n\nprint rot13('gandalf')<\/pre>\n
d = {}\nfor c in (65, 97):\n    for i in range(26):\n        d[chr(i+c)] = chr((i+13) % 26 + c)\n\nprint \"\".join([d.get(c, c) for c in s])<\/pre>\n
#\u5927\u5c0f\u5199\u5b57\u6bcd<\/h6>\n
def rot13(s):\n\trot = lambda x:chr(ord(x)+13) if chr(ord(x.lower())+13).isalpha()==True else chr(ord(x)-13)\n\ts = [rot(i) for i in filter(lambda x:x!=',', map(str,s))]\n\treturn ''.join(s)<\/pre>\n
def rot13(s):\n    chars = \"AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz\"\n    trans = chars[26:] + chars[:26]\n    rot_char = lambda c: trans[chars.find(c)] if chars.find(c) > -1 else c\n    return ''.join(rot_char(c) for c in s)<\/pre>\n
#zip\/map\/join<\/h6>\n
def rot13(string):\n    CLEAR = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'\n    ROT13 = 'NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm'\n    TABLE = {x: y for x, y in zip(CLEAR, ROT13)}\n\n    return ''.join(map(lambda x: TABLE.get(x, x), string))<\/pre>\n
#yield<\/h6>\n
def rot13(clear):\n    CLEAR = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'\n    ROT13 = 'NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm'\n    TABLE = {x: y for x, y in zip(CLEAR, ROT13)}\n\n    for c in clear:\n        yield TABLE.get(c, c)<\/pre>\n
#\u81ea\u5b9a\u4e49Offset<\/h6>\n
def rot13(s, OffSet=13):\n\tdef encodeCh(ch):\n\t\tf = lambda x: chr((ord(ch)-x+OffSet) % 26 + x)\n\t\treturn f(97) if ch.islower() else (f(65) if ch.isupper() else ch)\n\treturn ''.join(encodeCh(c) for c in s)\n\ns = 'Hello!'\nprint rot13(s)\t\t\t# Uryyb!\nprint rot13(rot13(s))\t# Hello!\nprint rot13(s, 26)\t\t# Hello!<\/pre>\n
\u53c2\u8003\u94fe\u63a5\uff1a<\/h6>\n