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     }