打印菱形

public class Test {

    public static void main(String[] args) {

        int high = 9;//  9可改为N;
        int wide = high/2;
        for (int i =0;i<=high;i++){
            for(int j =0;j<Math.abs(wide-i);j++){
                System.out.print(" " );
            }

            for (int k =0;k<high-2*Math.abs(i-wide);k++) {
                System.out.print("*");
            }

            System.out.println();
        }

        System.out.println("wide = " + wide);


    }
}