还要再加上一句
btn[0]=new Button();
这样就行了
public Form1()
{
InitializeComponent();
Button[] btn = new Button[3];
int Top= 0;
for (int i = 0; i < 3; i++)
{
btn[i] = new Button();
btn[i].Top = Top;
this.Controls.Add(btn[i]);
Top += 30;
}
}
不知道为什么要定义二维数组,对二维数组的用处不太了解。不过用二维也是可以的。代码:
public Form1()
{
InitializeComponent();
Button[,] btn = new Button[3,3];
int Top= 0;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
btn[i,j] = new Button();
btn[i,j].Top = Top;
this.Controls.Add(btn[i,j]);
Top += 30;
}
}
}