終端同一行輸出進度信息，終端輸出進度

終端同一行輸出進度信息，終端輸出進度

直接貼代碼:

 1 #define MYSIZE 32*1024*1024
 2 
 3 #include <iostream>
 4 #include <iomanip>
 5 #include <fstream>
 6 #include <pthread.h>
 7 #include <stdlib.h>
 8 #include <string.h>
 9 #include <time.h>
10 #include <sys/time.h>
11 
12 using namespace std;
13 
14 unsigned int My_buffer[MYSIZE];
15 
16 string getFileName();
17 
18 int main(int argc, char **argv)
19 {    
20     //out current thread id;
21     cout<<getpid()<<endl;
22     
23     struct timeval tpseed;
24     int n;
25     float process;
26     float rule;
27     
28     cout<<"Data Buffer is Creating ...";
29     //clean output buffer
30     fflush(stdout);
31     //process step
32     rule=0.01;
33     
34     for(n=0;n<MYSIZE;n++)
35     {
36         //get millionseconds
37         gettimeofday(&tpseed,NULL);
38         //get rand
39         srand(tpseed.tv_usec);
40         My_buffer[n]=(unsigned int)(1+(3000.0*rand())/(RAND_MAX+1.0));
41         
42         process=n/(MYSIZE/100.0);
43         
44         if(n%(MYSIZE/100)==0 || ((int)process)<10)
45         {    
46             if(process>rule)
47             {
48                 rule=rule+0.01;
49                 //clean outside char
50                 cout<<"\r                                                                           ";    
51                 /*output avaliable char
52                  *\033[32;5m  set fonts properties 
53                  * \033[0m  set fonts nomal
54                  */
55                 cout<<"\r\033[32;5m Data Buffer is Creating \033[31;1m"
56                     <<setprecision(2)<<process<<"%\033[32;5m ...\033[0m";   
57                 //clean output buffer
58                 fflush(stdout);
59             }
60         }
61     }
62     cout<<endl;
63     return 0;
64 }