实验四:用一维数组输出等腰三角形的杨辉三角
public class yanghuirangle{
public static void main(String[] args) {
int arr[][] = new int[5][];
for (int i = 0; i < arr.length; i++)
{ arr[i] = new int[i + 1];
for (int j = 0; j < arr[i].length; j++)
{ if (j == 0 || j == arr[i].length - 1){ arr[i][j] = 1; }
else{ arr[i][j] = arr[i - 1][j - 1] + arr[i - 1][j];
}
}
} for (int i = 0; i < arr.length; i++)
{ for(int k = arr.length - i; k > 0; k--){
System.out.print(" ");
}
for (int j = 0; j < arr[i].length; j++){
System.out.print(arr[i][j] + " ");
} System.out.println();
}
}
总结:一维数组使用不熟悉,需要多加练习,对于java课程的了解越来越困难,努力争取学懂java语言。