Python - Array 拼接+
>>> a=np.array([1,2,3])
>>> b=np.array([11,22,33])
>>> c=np.array([44,55,66])
>>>
np.concatenate((a,b,c),axis=0) # 默认情况下,axis=0可以不写
array([ 1, 2, 3, 11, 22, 33, 44, 55, 66]) #对于一维数组拼接,axis的值不影响最后的结果
>>> a=np.array([[1,2,3],[4,5,6]])
>>> b=np.array([[11,21,31],[7,8,9]])
>>> np.concatenate((a,b),axis=0)
array([[ 1, 2, 3],
[ 4, 5, 6],
[11, 21, 31],
[ 7, 8, 9]])
>>> np.concatenate((a,b),axis=1) #axis=1表示对应行的数组进行拼接
array([[ 1, 2, 3, 11, 21, 31],
[ 4, 5, 6, 7, 8, 9]])
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>>> text = 'a,b,c' >>> text = text.split(',') >>> text [ 'a', 'b', 'c' ]
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Array 刪除
參考
https://blog.csdn.net/zyl1042635242/article/details/43162031
https://stackoverflow.com/questions/5387208/how-to-convert-a-string-to-a-list-in-python
http://puremonkey2010.blogspot.com/2017/06/python-numpy-append-1d-array-to-2d.html