你的问题被标记为C和C++ (这不是建设性的).我将给出C++的答案.
#include <fstream>
#include <iterator>
#include <vector>
using namespace std;
int main()
{
ifstream in("filename.txt"); //open file
in >> noskipws; //we don't want to skip spaces
//initialize a vector with a pair of istream_iterators
vector<unsigned char> v((istream_iterator<unsigned char>(in)),
(istream_iterator<unsigned char>()));
...
}
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