将数据读入二维数组? [英] Read data into 2 dimensional array?

问题描述

我正在尝试将数据文件读入二维数组. 例如:

I am trying to read a data file into a 2 dimensional array. For example:

file.dat:

1 2 3 a
4 5 6 b
7 8 9 c

我尝试过类似的事情:

file=open("file.dat","r")

var = [[]]
var.append([j for j in i.split()] for i in file)

但这没用.

我需要二维数组形式的数据，因为之后我需要对每个元素进行操作，例如

I need the data in form of two dimensional array as I need to do operations with each element afterwards, e.g.

for k in range(3):
    newval(k) = var[k,1]

有什么想法吗?

推荐答案

file = open("file.dat", "r")          # open file for reading

var = []                              # initialize empty array
for line in file:
  var.append(line.strip().split(' ')) # split each line on the <space>, and turn it into an array
                                      # thus creating an array of arrays.
file.close()                          # close file.

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