/*****?代碼沒有貼全，無法編譯通過但是計(jì)時(shí)主要用到的信號(hào)與槽就是下面兩個(gè)?只要recordTiming?函數(shù)執(zhí)行就會(huì)開始執(zhí)行計(jì)時(shí)****/
/***********?頭文件?**********/
#ifndef?ENCODE_H
#define?ENCODE_H

#include?
#include?
#include?

namespace?Ui?{
????class?encode;
}

class?encode?:?public?QWidget
{
????Q_object

public:
????explicit?encode（QWidget?*parent?=?0）;
????~encode（）;

private:
????Ui::encode?*ui;
	int?flag;
????int?hour;
????int?minute;
????int?second;
????QTimer?*recordTimer;	
????void?startRecord（）;

private?slots:
????void?recordTiming（）;
};

#endif?//?ENCODE_H

/******?計(jì)時(shí)開始函數(shù)?*****/
void?encode::startRecord（）
{
????this->recordTimer?=?new?QTimer;
????connect（recordTimerSIGNAL（timeout（））thisSLOT（recordTiming（）））;
????hour?=?0;
????minute?=?0;
????second?=?0;
????recordTi