c++ find 在容器中查找元素

 int arr[] = {1,2,3,4,5};  size_t arr_size = sizeof(arr)/sizeof(int);  vector<int> vecArr(arr, arr+arr_size); vector<int>::iterator ite = find(vecArr.begin(),vecArr.end(),3);if(ite!=vecArr.end()) {cout<<*ite<<endl;}