x.append () to increase the difference between different dimensions

 

b=np.array([[7,2],[2,4],[3,6],[7,8],[9,10]])
print(b)
print(type(b))   # 结果显示为nunmpy 数组
a=[]
for i in range(4):
    a.append(b[i])
print(a)
print(type(a))


a=[]
for i in range(4):
    a.append(i)
print(a)
print(type(a))

 

 

 

Add a number and add the results of a multidimensional array, as follows:

1. Increase the multi-dimensional

b=np.array([[7,2],[2,4],[3,6],[7,8],[9,10]])
print(b)   
a=[]
for i in range(4):
    a.append(b[i])   
print(a)
print(type(a))

2.增加1维

a=[]
for i in range(4):
    a.append(i)      
print(a)
print(type(a))