如图所示,打印出如下图形:
* *** ***** *** * public static void draw() { int n=3; //前三行的输出 for (int i = 1; i <= n; i++) { //控制行数 for (int j = 1; j <= n - i; j++) { //打印空格 System.out.print(" "); } for (int k = 0; k < i*2 -1; k++) { //打印* System.out.print("*"); } System.out.println(); } //后两行的输出 for (int i = n-1; i >= 1;i--) { //行数 for(int k = 1;k <= n-i;k++) { //打印空格 System.out.print(" "); } for (int j = 1; j <= i*2 -1; j++) { //打印* System.out.print("*"); } System.out.println(); } }`