php中递归乞降技巧_C｜趣味实用小实例运用递归实现数组乞降

#include <stdlib.h>#include <iostream>using namespace std;int arrSum(int arr[],int n){if(n!=0)return arr[n-1] + arrSum(arr,n-1);return 0;//return n==0?0:(arr[n-1] + arrSum(arr,n-1));}void main(){int arr[] = {1,2,3,4,5};int len=sizeof(arr)/sizeof(arr[0]);cout<<arrSum(arr,len)<<endl; system(\"大众pause\"大众);}//15

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