Jacky_one wrote:
下面的代码可以帮你搞定
class Daan {
public static void main(String args[]) {
char twoD[][] = new char[5][];
twoD[0] = new char[1];
twoD[1] = new char[2];
twoD[2] = new char[3];
twoD[3] = new char[4];
twoD[4] = new char[5];


int i, j, k = 0;

for(i=0; i<5; i++)
for(j=0; j<i+1; j++) {
twoD[i][j] = '#';
k++;
}

for(i=0; i<5; i++) {
for(j=0; j<i+1; j++)
System.out.print(twoD[i][j] + " ");
System.out.println();
}
}
}