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[1,2,3]和array（[1,2,3]）有什么区别

[英]What is the difference between [1,2,3] and array([1,2,3])

原文 2016-01-08 01:30:12 1 1 python

I am learning python and I find a=[1,2,3] is almost the same as a=array([1,2,3]),though the latter will show [1 2 3] when I print it. 我正在学习python，我发现a = [1,2,3]与a = array（[1,2,3]）几乎相同，尽管在我打印时后者会显示[1 2 3]。 What is the difference between them? 它们之间有什么区别？

1 个解决方案

The first is a Python list and the second is, presumably a numpy array. 第一个是Python列表，第二个大概是一个numpy数组。 numpy arrays have drastically different features than lists: lists are easily expanded and contracted 1d vectors of arbitrary Python objects. numpy数组的功能与列表完全不同：列表易于扩展和收缩任意Python对象的1d向量。 numpy arrays are memory-compact representations of mostly numbers of arbitrary dimension and fixed size, mainly for use with numerical programming. numpy数组是紧凑的表示形式，主要表示任意维数和固定大小的数字，主要用于数值编程。

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