ifstream ifs(file_name, std::ios::binary|std::ios::in);
if (ifs.is_open())
{
ifs.seekg(0,std::ios::end);
int len = ifs.tellg();
ifs.seekg(0,std::ios::beg);
char *buff = new char[len];
ifs.read(buff , len);
delete []buff;
}
C++ ifstream 读取文件大小和读取所有内容
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转载自blog.csdn.net/u010261063/article/details/108080002
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