mou*_*iec 5 c# arrays multidimensional-array
我想要一个函数将单维数组int [480000]转换为大小为int [800,600]的二维数组.你能帮我解决一下如何做到这一点吗?
public static T[,] Convert<T>(this T[] source, int rows, int columns)
{
int i = 0;
T[,] result = new T[rows, columns];
for (int row = 0; row < rows; row++)
for (int col = 0; col < columns; col++)
result[row, col] = source[i++];
return result;
}
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你真的想要物理移动数据还是800x600的"View"就足够了?
您可以使用这样的包装器:
// error checking omitted
class MatrixWrapper<T>
{
private T[] _data;
private int _columns;
public MatrixWrapper(T[] data, int rows, int columns)
{
_data = data;
_columns = columns;
// validate rows * columns == length
}
public T this[int r, int c]
{
get { return _data[Index(r, c)]; }
set { _data[Index(r, c)] = value; }
}
private int Index(int r, int c)
{
return r * _columns + c;
}
}
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你使用它像:
double[] data = new double[4800];
var wrapper = new MatrixWrapper<double>(data, 80, 60);
wrapper[2, 2] = 2.0;
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