Linux下的自动化构建工具之make/makefile的用法详解

mycode:mycode.c
    gcc mycode.c -o mycode
.PHONY:clean                                                                                               
clean:
    rm -f mycode

[root@VM-4-11-centos ~]# stat 106/text.c
  File: ‘106/text.c'
  Size: 0             Blocks: 0          IO Block: 4096   regular empty file
Device: fd01h/64769d    Inode: 658416      Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2022-09-17 21:13:21.098656019 +0800//最近访问
Modify: 2022-09-17 21:13:21.098656019 +0800//最近修改
Change: 2022-09-17 21:13:21.098656019 +0800//最近改动
 Birth: -

#include <stdio.h>    
#include <unistd.h>    
int main()    
{    
    printf("hello world\n");//如果这里没有\n，程序将会在3秒后执行打印
    //fflush(stdout);//fflush会立即刷新缓冲区
    sleep(3);    
    return 0;    
}   

#include <stdio.h>    
#include <unistd.h>    
int main()    
{    
    int cnt=10;    
    while(cnt)    
    {    
        printf("%2d\r",cnt);//2d控制刷新两位，\r表示回车                                                                                   
        fflush(stdout);//手动刷新缓冲区   
        sleep(1);    
        --cnt;    
    }    
    return 0;    
}  

//.h文件    
#pragma once                                                                                               
#include <stdio.h>                                                          
#include <unistd.h>                                          
#include <string.h>                                                                                                                       
#define NUM 101                                                                      
#define STYLE '*'                                                                               
extern void processOn(); 
//.c文件
#include "process.h"                                                                                           
void processOn()    
{    
    int cnt=0;    
    char bar[NUM];    
    memset(bar,'\0',NUM);    
    char type[4]={'|','/','-','\\'};    
    while(cnt<=100)    
    {    
        //-100表示占据屏幕100个空间并左对齐，%%转义为%
        printf("[%-100s][%d%%][%c]\r",bar,cnt,type[cnt%4]);   
        bar[cnt++]=STYLE;    
        fflush(stdout);    
        usleep(50000);    
    }    
    printf("\n");    
}