第十五周阅读项目3.（2）

问题及代码：

#include <fstream>using namespace std;int main (){    long pos;    ofstream outfile;    outfile.open ("test.txt");    outfile.write ("This is an apple",16);    pos=outfile.tellp();    outfile.seekp (pos-7);    outfile.write (" sam",4);    outfile.close();    return 0;}

运行结果：