如果在cin设置断点则正常运行 及时加了clear sync也没啥作用……for (; a!='#'; ) {cout << "please input numbers"< cin.clear();//重置错误输入cin.sync();//清空缓冲区cin >> read2;a=getchar();book.read(read2);book.calculate();}
help！！！！头都大了