C++之vector类型的形参
推荐的做法是使用迭代器当做形参
1 #include <iostream> 2 #include <new> 3 #include <bitset> 4 #include <string> 5 #include <stdexcept> 6 #include <vector> 7 8 9 using namespace std; 10 11 12 void print(vector<double>::iterator iter_begin,vector<double>::iterator iter_end) 13 { 14 while(iter_begin!=iter_end) 15 { 16 cout<<*iter_begin<<endl; 17 *iter_begin++; 18 } 19 } 20 21 double print_sum(vector<double>::iterator iter_begin,vector<double>::iterator iter_end) 22 { 23 double sum=0.0; 24 while(iter_begin!=iter_end) 25 { 26 sum+=*iter_begin; 27 *iter_begin++; 28 } 29 return sum; 30 } 31 32 int main() 33 { 34 vector<double> v; 35 cout<<"请输入数据:"<<endl; 36 double val; 37 while(cin>>val) 38 { 39 v.push_back(val); 40 } 41 cout<<"输入的数据为:"<<endl; 42 print(v.begin(),v.end()); 43 cout<<"向量的和为:"<<endl; 44 double sum=print_sum(v.begin(),v.end()); 45 cout<<sum<<endl; 46 return 0; 47 //预处理进行调试 48 #ifdef NDEBUG 49 cout<<""<<endl; 50 #endif // NDEBUG 51 }