// pb : PictureBox
private void btn_Click(object sender, System.EventArgs e){
// Graphics オブジェクトの取得
pb.Image = new Bitmap(pb.Width, pb.Height) ;
Graphics g = Graphics.FromImage(pb.Image) ;
// Pen pen = new Pen(Color.Magenta) ;
// 塗りつぶし四角形
SolidBrush brush = new SolidBrush(Color.DarkBlue) ;
g.FillRectangle(brush, 0, 0, 20, 20) ;
// 文字列
Font font = new Font("Arial", 20.0) ;
g.DrawString("Hello", font, brush, 20, 0);
}
int[][] A = new int[10][];
A[0] = new int[10];
for(int i = 0; i < A[0].Length; i++){
Console.Write(A[0][i] + ",");
}
int[,] A = new int[2,2];
Console.WriteLine(A[0,0]);
for(int i = 0; i < A.GetLength(0); i++){
for(int j = 0; j < A.GetLength(1); j++){
Console.Write(A[i,j] + ",");
}
}
int[][] A = new int[][]{new int[]{1,2,3},new int[]{1,3}};
int[][] A = {{1,2,3},{1,3}};
0 スタートです。
string text = "{0},{1}", A[0], A[1];
[an error occurred while processing this directive]