编写程序，提示用户输入一个整数，然后显示一个金子塔形状的图案

import java.util.Scanner;

public class chapt3 {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

System.out.println("Enter the number of lines:");

int n = input.nextInt();

int i = 1,m = 1;

int s = 2,k = 1;

for(m = 1;m<=n;m++){

for (k=1;k<=(n-m);k++)

System.out.print(" "); //循环输出n-m空格

for (i=m;i>=1;i--)

System.out.print(i); //输出i,i-1,..1

for (s=2;s<=m;s++)

System.out.print(s); //输出2,3,...,m

for (k=1;k<=n-m;k++)

System.out.print(" "); //输出n-m个空格

System.out.print("\n"); //换行

}

}

}

输出样式：

假设输入4，会输出：

1

212

32123

4321234

import java.util.Scanner;

public class Demo1 {

public static void main (String[] args) {

Scanner input = new Scanner(System.in);

int number = input.nextInt();

for (int n = 1; n <= number; n++){

for (int k = number - n; k >= 1; k--)

System.out.print(" "); //循环输出前半部分空格

for (int i = 1; i <= n; i++)

System.out.print(2 * i - 1);

for (int j = n - 1; j >= 1; j--)

System.out.print(2 * j - 1);

for (int m =1; m <= n -1; m++)

System.out.print(" ");
//循环输出后半部分空格

System.out.println(); //换行

}



}

}

如输入3

输出样式

1

131

13531