转载:https://blog.csdn.net/amuchena/article/details/89060798和https://www.runoob.com/python/python-func-sum.html
numpy中的sum()函数和python中不太一样:
转载:https://blog.csdn.net/amuchena/article/details/89060798和https://www.runoob.com/python/python-func-sum.html
numpy中的sum()函数和python中不太一样: