有以下程序 #include void f(int x[], int n) { if ( n> 1) { printf("%d,", x[n-1]); f(x, n-1); } else printf("%d,", x[0]); } main() { int z[6] = {1,2,3,4,5,6}; f(z,6); printf("\n"); } 程序的运行结果是