😭很ji,java课要上去讲代码,啥也不会,想求一个超详细的讲解(代码是搜的,但是真的一步也看不懂😭teacher要提问)
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("请输入杨辉三角的层数:");
int n = sc.nextInt();
int[][] yanghui = new int[n][n];
// 初始化第一列和对角线上的值
for (int i = 0; i < n; i++) {
yanghui[i][0] = 1;
yanghui[i][i] = 1;
}
// 计算每个数的值
for (int i = 2; i < n; i++) {
for (int j = 1; j < i; j++) {
yanghui[i][j] = yanghui[i-1][j-1] + yanghui[i-1][j];
}
}
// 输出杨辉三角
for (int i = 0; i < n; i++) {
for (int j = 0; j <= i; j++) {
System.out.print(yanghui[i][j] + " ");
}
System.out.println();
}
}
}