public spmatrix <T> Transpose()
{
spmatrix <T> N = new spmatrix <T>();
int p, q, col;
N.MAXNUM = MAXNUM;
N.nd = md;
N.md = nd;
N.td = td;
N.data = new tupletype <T> [N.td];
if (td != 0)
{
q = 0;
for (col = 0; col < nd; col++)
{
for (p = 0; p < td; p++)
{
if (data[p].j == col)
{
N.data[q].i = data[p].j;
N.data[q].j = data[p].i;
N.data[q].v = data[p].v;
q++;
}
}
}
}
return(N);
}
public static void Main(string[] args)
{
spmatrix <int> M = null;
int i, j, v;
int[] price = new int[] { 20, 35, 10, 2, 98, 22 };
while (true)
{
Console.WriteLine("请输入操作选项：");
Console.WriteLine("1.初始化产品购买数据矩阵");
Console.WriteLine("2.显示产品购买数据矩阵");
Console.WriteLine("3.显示产品购买数据矩阵的转置矩阵");
Console.WriteLine("4.显示每位顾客的销售金额");
Console.WriteLine("5.退出");
char seleflag = Convert.ToChar(Console.ReadLine());
switch (seleflag)
{
case '1':
{
char flag;
int max, pronum, cusnum;
Console.Write("请输入产品数：");
pronum = Convert.ToInt32(Console.ReadLine());
Console.Write("请输入顾客数：");
cusnum = Convert.ToInt32(Console.ReadLine());
Console.Write("请输入最大非零数：");
max = Convert.ToInt32(Console.ReadLine());
M = new spmatrix <int>(max, pronum, cusnum);
int z = 0;
do
{
Console.WriteLine("请依次输入第{0}个三元组的产品号、客户号、购买数量：", (z + 1));
i = Convert.ToInt32(Console.ReadLine());
j = Convert.ToInt32(Console.ReadLine());
v = Convert.ToInt32(Console.ReadLine());
M.setData(i, j, v);
Console.Write("还有数据输入吗（Y/N）：");
flag = Convert.ToChar(Console.ReadLine());
z++;
} while (flag == 'Y' && z <= max);
break;
}
case '2':
{
int z = 0;
Console.WriteLine("以产品编号为行，客户编号为列的矩阵是：");
for (int row = 0; row < M.Md; row++)
{
for (int col = 0; col < M.Md; col++)
{
for (z = 0; z < M.Td; z++)
{
if (M.Data[z].i == row && M.Data[z].j == col)
{
Console.Write("{0}\t", M.Data[z].v);
break;
}
}
if (z == M.Td)
{
Console.WriteLine("0\t");
}
}
Console.WriteLine();
}
break;
}
case '3':
{
Console.WriteLine("以客户编号为行，产品编号为列的矩阵是：");
spmatrix <int> N = new spmatrix <int>();
N = M.Transpose();
int z = 0;
for (int row = 0; row < N.Md; row++)
{
for (int col = 0; col < N.Nd; col++)
{
for (z = 0; z < N.Td; z++)
{
if (N.Data[z].i == row && N.Data[z].j == col)
{
Console.Write("{0}\t", N.Data[z].v);
break;
}
}
if (z == N.Td)
{
Console.Write("0\t");
}
}
Console.WriteLine();
}
break;
}
case '4':
{
Console.WriteLine("顾客的销售金额清单如下：");
Console.WriteLine("编号\t 金额");
int sum = 0;
for (int q = 0; q < M.Nd; q++)
{
for (int p = 0; p < M.Td; p++)
{
if (M.Data[p].j == q)
{
sum = sum + M.Data[p].v * price[M.Data[p].i];
}
}
Console.WriteLine("{0}\t{1}", q, sum);
sum = 0;
}
break;
}
case '5':
{
return;
}
}
Console.Write("按任意键继续……");
Console.ReadLine();
}
Console.ReadLine();
}
