Linux 如何改变输出的内容

auto nLineCount = _vtInfo.size();for (auto str : _vtInfo){    cout << str.c_str() << endl;}cout << "Connect Count:" << _mdAF101.GetConnectCount() << endl;cout << instrument << " " << ++_nReceviedCount << endl;printf("\033[%dA", nLineCount + 2);

printf(“\033[%dA”, nLineCount);
表示将光标上移nLineCount，这样每次都是改变了之前输出的内容

参考：
http://zisedeqing.blog.163.com/blog/static/9555087120129111485394/
http://blog.csdn.net/kevinshq/article/details/8179252