STL_fill()用法

 void fill (ForwardIterator first, ForwardIterator last, const T& val);

 1 #include <iostream>
 2 #include <cstdio>
 3 #include <algorithm>
 4 
 5 using namespace std;
 6 
 7 int main(){
 8     int a[5]={0};
 9     fill(a,a+3,1);
10     for(int i=0;i<5;i++){
11         printf("%d ",a[i]);
12     }
13     printf("\n");
14     fill(a+3,a+5,999);
15     for(i=0;i<5;i++){
16         printf("%d ",a[i]);
17     }
18     printf("\n");
19     return 0;
20 }