我在学校的这个项目上遇到了一些问题。我正在尝试使用二维数组,并收到一些关于“没有从 int 转换为 int * 和 '>=':'int [5]' 与 'int' 的间接级别不同”的错误。我可以为一维数组编写它,但对二维的语法有困难。关于我可能缺少的东西,有人可以指出我正确的方向吗?我在 btnShow_CLick 之后注释掉了它并且它工作正常,它只是 btnGroup_Click 我显然遗漏了一些东西。
感谢任何可能分享一些知识的人。
static const int NUMROWS = 4;
static const int NUMCOLS = 5;
int row, col;
Graphics^ g;
Brush^ redBrush;
Brush^ yellowBrush;
Brush^ greenBrush;
Pen^ blackPen;
private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {
g = panel1->CreateGraphics();
redBrush = gcnew SolidBrush(Color::Red);
yellowBrush = gcnew SolidBrush(Color::Yellow);
greenBrush = gcnew SolidBrush(Color::Green);
blackPen = gcnew Pen(Color::Black);
}
private: System::Void btnShow_Click(System::Object^ sender, System::EventArgs^ e) {
panel1->Refresh();
for (int row = 0; row < NUMROWS; row++)
{
for (int col = 0; col < NUMCOLS; col++)
{
Rectangle seat = Rectangle(75 + col * 75,40 + row *40,25,25);
g->DrawRectangle(blackPen, seat);
}
}
}
private: System::Void btnGroup_Click(System::Object^ sender, System::EventArgs^ e) {
int score[NUMROWS][NUMCOLS] = {{45,65,11,98,66},
{56,77,78,56,56},
{87,71,78,90,78},
{76,75,72,79,83}};
int mean;
int student;
mean = CalcMean(score[]);
txtMean->Text = mean.ToString();
for (int row = 0; row < NUMROWS; row++)
{
for (int col = 0; col < NUMCOLS; col++)
{
student = (row*NUMCOLS) + (col);
Rectangle seat = Rectangle(75 + col * 75,40 + (row * 40),25,25);
if (score[student] >= 80
g->FillRectangle(greenBrush, seat);
else if (score[student] >= mean)
g->FillRectangle(yellowBrush, seat);
else
g->FillRectangle(yellowBrush, seat);
g->DrawRectangle(blackPen, seat);
}
}
}
private: double CalcMean(int score[])
{
int sum = 0;
int students = NUMROWS * NUMCOLS;
for (int i=0; i< students; i++) sum += score[i];
return sum / students;
}