思考题：河里的水是无限的,现在有两个不规则的水桶分别是7L、5L，请问如何从河里取1L水？
河里的水是无限的,现在有两个不规则的水桶分别是7L、5L,问如何从河里取1L水？
感性橘子
numpy教程：逻辑函数Logic functions
http://blog.csdn.net/pipisorry/article/details/48208433真值测试Truth value testingall(a[, axis, out, keepdims])Test whether all array elements along a given axis evaluate to True.any(a[, axis, out, keepdi
