终端同一行输出进度信息

直接贴代码:

 1 #define MYSIZE 32*1024*1024

#include <iostream>
#include <iomanip>
#include <fstream>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>

using namespace std;

unsigned int My_buffer[MYSIZE];

string getFileName();

int main(int argc, char **argv)
{    
    //out current thread id;
    cout<<getpid()<<endl;
    
    struct timeval tpseed;
    int n;
    float process;
    float rule;
    
    cout<<"Data Buffer is Creating ...";
    //clean output buffer
    fflush(stdout);
    //process step
    rule=0.01;
    
    for(n=0;n<MYSIZE;n++)
    {
        //get millionseconds
        gettimeofday(&tpseed,NULL);
        //get rand
        srand(tpseed.tv_usec);
        My_buffer[n]=(unsigned int)(1+(3000.0*rand())/(RAND_MAX+1.0));
        
        process=n/(MYSIZE/100.0);
        
        if(n%(MYSIZE/100)==0 || ((int)process)<10)
        {    
            if(process>rule)
            {
                rule=rule+0.01;
                //clean outside char
                cout<<"
                                                                           ";    
                /*output avaliable char
                 *33[32;5m  set fonts properties 
                 * 33[0m  set fonts nomal
                 */
                cout<<"
33[32;5m Data Buffer is Creating 33[31;1m"
                    <<setprecision(2)<<process<<"%33[32;5m ...33[0m";   
                //clean output buffer
                fflush(stdout);
            }
        }
    }
    cout<<endl;
    return 0;
}