txt文件中所有信息讀取到char型數組中

# include <iostream>

# include <fstream>

# include <ios>

using namespace std;

int main()

{

    ifstream in("y.cpp");

    in.seekg(0, ios::end);

    int length = in.tellg();

    in.seekg(0, ios::beg);

    char * buffer = new char[length];

    in.read(buffer, length);

    in.close();

    cout.write(buffer, length);

    delete [] buffer;

    return 0;

}