#include<iostream>
#include<cstring>
using namespace std;
int main()
{
int a[3] = {1,2,3};
int b[3] = {1,2,3};
int c[5] = {1,4,3,4,5};
for(int i=0;i<3;i++) cout<<a[i]<<" ";
memset(b,-1,sizeof b);
for(int i=0;i<3;i++) cout<<b[i]<<" ";
memcpy(a,c,sizeof a);
for(int i=0;i<3;i++) cout<<a[i]<<" ";
return 0;
}
- 输出:1 2 3 -1 -1 -1 1 4 3