javaдµÄÑî»ÔÈý½Ç
import javax.swing.JOptionPane;
public class San {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String rowString;
int rowInt;
rowString = JOptionPane.showInputDialog("lines£º");
rowInt = Integer.parseInt(rowString);
int triangle[][]=new int[rowInt][rowInt * 2 - 1];
for(int i = 0;i < rowInt;i++){
for(int j = 0;j < rowInt * 2 -1;j++){
triangle[i][j] = -1;
}
}
for(int i = 0;i < rowInt;i++){
triangle[(rowInt * 2 - 1) / 2 - i][i] = 1;
triangle[(rowInt * 2 - 1) / 2 - i][rowInt * 2 - 1 - i - 1] = 1;
 
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