1 ,求 nd 的和 : 總和 sum(),行和sum(axis=1),列和sum(axis=0)
- 代碼 :
if __name__ == '__main__':
nd01 = np.array([[1,2,3,4],
[2,3,4,5]])
print(nd01.sum())
print(nd01.sum(axis=1))
print(nd01.sum(axis=0))
=====================================
24
[10 14]
[3 5 7 9]