数据录入的代码问题
程序代码：#include <vector>
#include <fstream>
#include <iostream>
#include <cmath>
struct foo
{
int user, item, rating, v4;
};
struct cinema
{
int item,rating;
};
int main()
{
int i = 1;
cinema c1;
std::vector<cinema> v1;
std::vector< std::vector<cinema> > base;
//数据录入
std::ifstream infile1("base");
if( infile1 )
{
for( foo f; infile1>>f.user>>f.item>>f.rating>>f.v4; )
{
if( f.user = i)
{
c1.item = f.item;
c1.rating = f.rating;
v1.push_back( c1 );
}
else
{
i += 1;
base.push_back( v1 );
}
}
}
std::cout<<base[1][5].item;
return 1;
}[ 本帖最后由 yqjohn 于 2013-2-14 10:01 编辑 ]
