在C＃中从文本文件中读取大量整数（双精度）的最有效方法是什么？

Question

If i have to read a huge matrix of integers from a file, what would be the most efficient way to do so in C#?

Example :

n m // n - number of rows m - number of columns
a11  ... a1m
    ...
an1 ...  anm

Answer 1

Mostly it depends what you mean by efficient, in terms of speed once loaded loading into an multidimensional array and using this would be very quick.

In terms of only using the resources that you need, streaming the rows line by line would be best.

Answer 2

In my opinion, after reading the whole text from file, you can use Regex class to match all numbers (using Matches(String) method) and retrieve an object of class Matches . All the number under String form are stored in this object and you can obtain the numbers by parsing it from these string.