变量名变字符串
#define name_to_str(xxx) #xxx
#include<stdio.h>
#include<string.h>
using namespace std;
int nameTest=9;
std::string dgdfg=name_to_str(nameTest);
QString dfsfdsfds =QString::fromStdString(dgdfg);;
//dfsfdsfds=QString("%1%2").arg(name_to_str(nameTest)).arg(nameTest);
qDebug() << "TBKEY_STEP"<<dfsfdsfds;