双区别[*，*]翻番[] []在C＃ [英] difference between double[*,*] to double[][] in c#

问题描述

我用

double [,] marks=new double[26,5] 
int[] function = object.verify(marks) 

public void verifymarks(double[][] marks)

错误我得到的是不能转换的双[ 的]翻番[] []
I试图在网上搜索，但couldnot找到任何解决方案。我刚开始使用C＃。请帮忙。 THankx提前

error i get is cannot convert from double[,] to double[][] i tried to search in the internet but couldnot find any solution. I have just began to use c#. Please Help. THankx in advance

推荐答案

双击[] [] 参差不齐。这是字面上的数组的数组。

double[][] is jagged. It's literally an array of arrays.

双击[，] 是多维的。它得到特殊的编译器处理。

double[,] is multidimensional. It gets special compiler treatment.

他们有不同的内存布局。 双击[] [] 是保存到另一个数组的引用，而阵列双[，] 是布局单维以方便使用。

They have different memory layouts. double[][] is an array which holds references to the other arrays, while double[,] is laid out single-dimensionally for easier use.

另一个区别是，他们还能持有什么数据。交错数组可以是这样的：

Another difference is what data they can hold. A jagged array can be like this:

1231243245345345345345
23423423423423
2342342343r234234234234234234
23423

在一个多维数组必须是一个完美的表，如下所示：

While a multidimensional array has to be a perfect table, like this:

34534534534534
34534534534533
34534534534534
34534534534545

一个办法来解决它是使用可空 INT 秒。

A way to get around it would be to use nullable ints.

现在，解决你的问题：

更改方法签名，以公共无效verifymarks（双[，]引号），并在方法改变任何使用标记[X] [Y] 到标记[X，Y] 。

Change your method signature to public void verifymarks(double[,] marks) and in the method change anything that uses marks[x][y] to marks[x,y].

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