C#类获取返回的二维数组
本文关键字:二维数组 返回 获取 | 更新日期: 2024-09-24 06:32:01
我在理解如何使用get从类中获取二维数组时遇到了一些困难。
这就是我的课程目前的样子:
class Something
{
private int[,] xArray;
public Something()
{
xArray = new int[var1, var2];
for (int row = 0; row < xArray.Getlength(0); row++)
for (int col = 0; col < xArray.GetLength(1); col++)
xArray[row, col] = someInt;
}
public int[,] XArray
{
get { return (int[,])xArray.Clone(); }
}
}
class Main
{
Something some;
public void writeOut()¨
{
some = new Something();
for (int row = 0; row < some.XArray.GetLength(0); row++)
for (int col = 0; col < some.XArray.GetLength(1); col++)
Console.Write(some.XArray[row, col].ToString());
}
}
当我用调试器检查xArray时,它在Something类中具有它应该具有的所有值,但在Main类中没有值,它只获取数组的大小。我做错了什么?
想出这个狙击手,它在控制台中写下一百个"1",这意味着测试人员(您的"Main")确实看到了正确的值。
老实说,我不知道你的问题是什么,因为我们没有看到你的整个代码。除非你发布完整的解决方案,否则你必须自己想办法。您发布的代码按照您所说的方式运行。
长话短说:我添加了运行所需的部分,它不仅运行了,而且没有显示任何错误。您可能需要将您的代码与下面的代码进行比较。
using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
tester.writeOut();
}
}
class Something
{
private int firstDimensionLenght = 10;
private int secondDimensionLenght = 10;
private int[,] xArray;
public Something()
{
xArray = new int[firstDimensionLenght, secondDimensionLenght];
for (int row = 0; row < xArray.GetLength(0); row++)
for (int col = 0; col < xArray.GetLength(1); col++)
xArray[row, col] = 1;
}
//Add some intellisence information stating you clone the initial array
public int[,] XArrayCopy
{
get { return (int[,])xArray.Clone(); }
}
}
class tester
{
static Something some;
//We dont want to initialize "some" every time, do we? This constructor
//is called implicitly the first time you call a method or property in tester
static tester(){
some = new Something()
}
//This code is painfuly long to execute compared to what it does
public static void writeOut()
{
for (int row = 0; row < some.XArrayCopy.GetLength(0); row++)
for (int col = 0; col < some.XArrayCopy.GetLength(1); col++)
Console.Write(some.XArrayCopy[row, col].ToString());
}
//This code should be much smoother
public static void wayMoreEfficientWriteOut()
{
int[,] localArray = some.XArrayCopy();
for (int row = 0; row < localArray.GetLength(0); row++)
for (int col = 0; col < localArray.GetLength(1); col++)
Console.Write(localArray[row, col].ToString());
}
}
}
按值复制C#数组
据我所知,阵列上的克隆复制不会应用于您的元素。你必须手动操作。它建议对克隆进行扩展,并让您管理深度复制。