两种思路从0打印到100

 1     public static void main(String[] args){
 2         int N=100;
 3         PrinterN(N);
 4     }
 5 
 6     private static void PrinterN(int n) {
 7         for(int i = 0;i<=n;i++){
 8             System.out.println(i);
 9         }
10     }

 1     public static void main(String[] args){
 2         int N=100;
 3         PrinterN(N);
 4     }
 5 
 6     private static void PrinterN(int n) {
 7         if(n>=0){
 8             PrinterN(n-1);
 9             System.out.println(n);
10         }
11     }