https://blog.youkuaiyun.com/pjzxwebzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/pjzxweb/article/details/78515032https://blog.youkuaiyun.com/pjzxweb/article/details/78515032pjzxwebSun, 12 Nov 2017 20:56:19 +0800>> c2=Counter('banana') #创建字符串的Counter对象 >>> c2 Counter({'a': 3, 'n': 2, 'b': 1}) >>> c2=Counter({'a':2,'b':3}) >>> c2 Cou]]>https://blog.youkuaiyun.com/pjzxweb/article/details/78387292https://blog.youkuaiyun.com/pjzxweb/article/details/78387292pjzxwebSun, 29 Oct 2017 19:40:29 +0800https://blog.youkuaiyun.com/pjzxweb/article/details/78312318https://blog.youkuaiyun.com/pjzxweb/article/details/78312318pjzxwebSun, 22 Oct 2017 19:26:05 +0800len(n21):]]>https://blog.youkuaiyun.com/pjzxweb/article/details/78294425https://blog.youkuaiyun.com/pjzxweb/article/details/78294425pjzxwebFri, 20 Oct 2017 13:29:25 +0800>> s="abc" >>> s 'abc' >>> s="中国" >>> s '中国' >>> s="中国abc" >>> s '中国abc' >>> len(s) 5要想把unicode字符转换成二进制数据，必须]]>https://blog.youkuaiyun.com/pjzxweb/article/details/78287997https://blog.youkuaiyun.com/pjzxweb/article/details/78287997pjzxwebThu, 19 Oct 2017 18:32:44 +0800https://blog.youkuaiyun.com/pjzxweb/article/details/78287892https://blog.youkuaiyun.com/pjzxweb/article/details/78287892pjzxwebThu, 19 Oct 2017 18:16:10 +0800https://blog.youkuaiyun.com/pjzxweb/article/details/78285817https://blog.youkuaiyun.com/pjzxweb/article/details/78285817pjzxwebThu, 19 Oct 2017 15:52:39 +0800B，则A+B=C与B+A=C视为不同的等式 3.所有火柴棍必须全部用上 假设有m根火柴棍(m<=24)，那么可以拼出多少个不同]]>https://blog.youkuaiyun.com/pjzxweb/article/details/78285251https://blog.youkuaiyun.com/pjzxweb/article/details/78285251pjzxwebThu, 19 Oct 2017 15:16:41 +0800https://blog.youkuaiyun.com/pjzxweb/article/details/53197299https://blog.youkuaiyun.com/pjzxweb/article/details/53197299pjzxwebThu, 17 Nov 2016 11:03:38 +0800https://blog.youkuaiyun.com/pjzxweb/article/details/53115028https://blog.youkuaiyun.com/pjzxweb/article/details/53115028pjzxwebThu, 10 Nov 2016 14:45:29 +0800