for循环叠层，for叠层,package mywo

for循环叠层，for叠层,package mywo

package mywork.ForDemo;import java.util.Scanner;public class ForDemo{    /**     * @param args     */    public static void main(String[] args) {        int count = 0;        Scanner sc = new Scanner(System.in);        System.out.println("输入层数：");        count = sc.nextInt();        for(int i=1;i<=count;i++){            for(int k=count;k>i;k--){                System.out.print(" ");            }            if(i==1){                System.out.println(i);            }else{                for(int j=i;j<=i;j++){                    for(int m =0;m<=j;m++){                        if(m==0){                            System.out.print("1");                        }else if(m<j){                            System.out.print(m+1);                            if(m==j-1){                                //饱和 ，反过来                                //123现在就要21                                for(int f=m;f>1;f--){                                    System.out.print(f);                                }                            }                        }else if(m==j){                            System.out.print("1");                            System.out.println("");                        }                    }                }            }        }    }}//该片段来自于http://byrx.net