C++之程序时间统计类实现

 /**********
 TimeCounter.h
 [e-mail]
 **********/
 #ifndef TIMECOUNTER
 #define TIMECOUNTER

 #include <iostream>
 #include <cstring>
 #include <ctime>
 #include <sstream>
 #include <cstdlib>
 #include "FileStruct.h"

 using namespace std;

 struct TimeCounter{
     time_t beginT;
     time_t nowT;
     int totalTask;
     int completeTask;
     string lastUseT;
     void setUp(int totalTask0){
         totalTask = totalTask0;
         nowT = ;
         beginT = time(NULL);
     }
     bool update(int taskNow){
         nowT = time(NULL);
         completeTask = taskNow;
         if (lastUseT == useTime() && completeTask < totalTask){
             return false;
         }
         else{
             lastUseT = useTime();
             return true;
         }
     }
     string useTime(){
         int r = nowT - beginT;
         return getTimeStr(r);
     }
     string restTime(){
         if(completeTask == ){
             return "unknow";
         }
         int restTT = double(totalTask-completeTask)*double(nowT-beginT)/double(completeTask);
         return getTimeStr(restTT);
     }
     string getTimeStr(int r){
         int rs = r;
         int rh = rs/;
         int  rm = rs/;
         string str;
         if (rh != ){
             str = numToStr(rh) + " hours ";
         }
         if (rs >= ){
             str += numToStr(rm%) + " minutes ";
         }
         str += numToStr(rs%) + " seconds";
         return str;
     }
     string percent(){
         int p = *completeTask/totalTask;
         return numToStr(p)+"%";
     }
     void print(bool clear){
         if (clear) system("clear");
         cout << "use time " << useTime()<<endl;
         cout << "rest Time "<< restTime() <<endl;
         cout << "complete " << percent() << endl;
     }
     void updateAndPrint(int nn,bool clear = true){
         if(update(nn)){
             print(clear);
         }
     }
 };

 #endif

 /*********
 main.cpp
 [e-mail]
 *********/
 #include <iostream>
 #include <cstring>
 #include <ctime>
 #include <sstream>
 #include <cstdlib>
 #include "TimeCounter.h"

 using namespace std;

 int main(){
     TimeCounter T;
     int totalTask = ;
     T.setUp(totalTask);
     int taskNow = ;
     while(taskNow < totalTask){
         T.updateAndPrint(++taskNow);
         for (int i =  ; i <  ; i++){
             int a = ;
             int b = ;
             while(a != b){
                 a++;
             }
         }
     }
 }