package learn.java;
public class YangHui {
/**
* @param args
*/
public static void main(String[] args){
int levelCount=10;
int[][] yangHui=new int[levelCount][0];
for(int i=0;i<levelCount;i++){
yangHui[i]=new int[i+1];
for(int j=0;j<=i;j++){
if(i==0){
yangHui[i][j]=1;
}else{
int value=0;
if(j>=1){
value=value+yangHui[i-1][j-1];
}
if(j<i){
value=value+yangHui[i-1][j];
}
yangHui[i][j]=value;
}
}
}
for(int i=0;i<levelCount;i++){
for(int j=0;j<=i;j++){
System.out.print(yangHui[i][j]+"\t");
}
System.out.println();
}
}
}
运行结果,
1
1 1
1 2 1
1 3 3
1
1 4 6
4 1
1 5 10
10 5
1
1 6 15
20 15
6 1
1 7 21
35 35
21 7 1
1 8 28
56 70
56 28 8
1
1 9 36
84 126
126 84
36 9 1