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Statistics: combinations in Python
... return 0
choose() is 10 times faster (tested on all 0 <= (n,k) < 1e3 pairs) than scipy.misc.comb() if you need an exact answer.
def comb(N,k): # from scipy.comb(), but MODIFIED!
if (k > N) or (N < 0) or (k < 0):
return 0L
N,k = map(long,(N,k))
top = N
val =...
std::find，std::find_if使用小结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...a2 = {"p2", "a1"};
vecProductAccount.push_back(pa2);
ProductAccount pa3 = {"p2", "a2"};
vecProductAccount.push_back(pa3);
ProductAccount pa4 = {"p1", "a3"};
vecProductAccount.push_back(pa4);
//通过产品查找账号（多对多的关系，所以有多个结果）
std::vector<st...
正则表达式 不包含指定字符串 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...原文链接：http://www.imkevinyang.com/2009/08/%E4%BD%BF%E7%94%A8%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E6%89%BE%E5%87%BA%E4%B8%8D%E5%8C%85%E5%90%AB%E7%89%B9%E5%AE%9A%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%9D%A1%E7%9B%AE.html
正则表达式 不包含 字符串
python MySQLdb模块安装 - 更多技术 - 清泛网 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~
python MySQLdb模块安装 - 更多技术 - 清泛网 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~
python MySQLdb模块安装 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~
python MySQLdb模块安装 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~
python MySQLdb模块安装 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~
python MySQLdb模块安装 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~
python MySQLdb模块安装 - 更多技术 - 清泛网移动版 - 专注IT技能提升
...，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~