python 列表,数组,矩阵两两转换tolist()的实例

# -*- coding: utf-8 -*-from numpy import *a1 =[[1,2,3],[4,5,6]] #列表print('a1 :',a1)#('a1 :', [[1, 2, 3], [4, 5, 6]])a2 = array(a1)  #列表 -----> 数组print('a2 :',a2)#('a2 :', array([[1, 2, 3],[4, 5, 6]]))a3 = mat(a1)   #列表 ----> 矩阵print('a3 :',a3)#('a3 :', matrix([[1, 2, 3],[4, 5, 6]]))a4 = a3.tolist()  #矩阵 ---> 列表print('a4 :',a4)#('a4 :', [[1, 2, 3], [4, 5, 6]])print(a1 == a4)#Truea5 = a2.tolist()  #数组 ---> 列表print('a5 :',a5)#('a5 :', [[1, 2, 3], [4, 5, 6]])print(a5 == a1)#Truea6 = mat(a2)  #数组 ---> 矩阵print('a6 :',a6)#('a6 :', matrix([[1, 2, 3],[4, 5, 6]]))print(a6 == a3)#[[ True True True][ True True True]]a7 = array(a3) #矩阵 ---> 数组print('a7 :',a7)#('a7 :', array([[1, 2, 3],[4, 5, 6]]))print(a7 == a2)#[[ True True True][ True True True]]###################################################################a1 =[1,2,3,4,5,6] #列表print('a1 :',a1)#('a1 :', [1, 2, 3, 4, 5, 6])a2 = array(a1)  #列表 -----> 数组print('a2 :',a2)#('a2 :', array([1, 2, 3, 4, 5, 6]))a3 = mat(a1)   #列表 ----> 矩阵print('a3 :',a3)#('a3 :', matrix([[1, 2, 3, 4, 5, 6]]))a4 = a3.tolist()  #矩阵 ---> 列表print('a4 :',a4)#('a4 :', [[1, 2, 3, 4, 5, 6]])  #注意！！有不同print(a1 == a4)#Falsea8 = a3.tolist()[0]  #矩阵 ---> 列表print('a8 :',a8)#('a8 :', [1, 2, 3, 4, 5, 6]) #注意！！有不同print(a1 == a8)#Truea5 = a2.tolist()  #数组 ---> 列表print('a5 :',a5)#('a5 :', [1, 2, 3, 4, 5, 6])print(a5 == a1)#Truea6 = mat(a2)  #数组 ---> 矩阵print('a6 :',a6)#('a6 :', matrix([[1, 2, 3, 4, 5, 6]]))print(a6 == a3)#[[ True True True True True True]]a7 = array(a3) #矩阵 ---> 数组print('a7 :',a7)#('a7 :', array([[1, 2, 3, 4, 5, 6]]))print(a7 == a2)#[[ True True True True True True]]