for(i = 1;i <= 9;i++){System.out.print(1+"*"+i+"="+1*i)}
for(j = 1;j <=9;j++){}
for (int j = 1; j <= 9; j++) { for (int i = 1; i <= 9; i++) { System.out.print(j+"*"+i+"="+j*i+"\t"); } System.out.println(); }
for (int j = 1; j <= 9; j++) { for (int i = 1; i <= j; i++) { System.out.print(j+"*"+i+"="+j*i+"\t"); } System.out.println(); }
还是分步来:
for (int j = 0; j <= 5; j++) {}
for (int i = 5; i >= j; i--) {System.out.print(" ");
空白可以用*试试形状; for (int i1 = 0; i1 <= j; i1++) { System.out.print("*"); } for (int i2 = 0; i2 <= j; i2++) { System.out.print("*");
for (int i1 = 0; i1 <= j; i1++) { System.out.print("*"); } for (int i2 = 0; i2 < j; i2++) { System.out.print("*");