Fundamental
- On a terminal that supports ANSI color control, you can use the ANSI control code to change the display mode of the terminal's characters;
- So we can output specific ANSI control codes through printf or cout to change the subsequent string output to the desired display mode;
- The ANSI control code uses ESC as the start marker of the control code, and corresponds to the escape character \033 in the C language; and then uses m as the end character;
- The format of the ANSI control code set in C is: \033[control code 1; control code 2; control code 3;...;control code nm
- Commonly used ANSI control codes see blog: Common ANSI control codes table
Simple example
#include <stdio.h>
#include <string.h>
#include <sys/msg.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <errno.h>
#include <unistd.h>
#include <pthread.h>
#include <time.h>
#include <sys/time.h>
//将ANSI的显示方式恢复到默认
#define PRINT_DEFAULT {printf("\033[0m");}
//字符以设定颜色和高亮的方式显示;
#define PRINT_RED(fmt, args...) {printf("\033[1;31m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_YELLOW(fmt, args...) {printf("\033[1;33m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_BLUE(fmt, args...) {printf("\033[1;34m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_GREEN(fmt, args...) {printf("\033[1;32m");printf(fmt, ##args);PRINT_DEFAULT}
//字符也设定颜色并且闪烁高亮的方式显示
#define PRINT_RED_FLIKER(fmt, args...) {printf("\033[1;5;31m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_YELLOW_FLIKER(fmt, args...) {printf("\033[1;5;33m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_BLUE_FLIKER(fmt, args...) {printf("\033[1;5;34m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_GREEN_FLIKER(fmt, args...) {printf("\033[1;5;32m");printf(fmt, ##args);PRINT_DEFAULT}
//字符以设定颜色并加下划线的方式显示
#define PRINT_RED_UNDERLINE(fmt, args...) {printf("\033[4;31m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_YELLOW_UNDERLINE(fmt, args...) {printf("\033[4;33m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_BLUE_UNDERLINE(fmt, args...) {printf("\033[4;34m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_GREEN_UNDERLINE(fmt, args...) {printf("\033[4;32m");printf(fmt, ##args);PRINT_DEFAULT}
//字符以设定颜色反转显示
#define PRINT_RED_INVERSE(fmt, args...) {printf("\033[7;31m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_YELLOW_INVERSE(fmt, args...) {printf("\033[7;33m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_BLUE_INVERSE(fmt, args...) {printf("\033[7;34m");printf(fmt, ##args);PRINT_DEFAULT}
#define PRINT_GREEN_INVERSE(fmt, args...) {printf("\033[7;32m");printf(fmt, ##args);PRINT_DEFAULT}
//debug打印默认打印当前函数名和行号;
#define PRINT_DBG(fmt, args...) {printf("[%s] [%d]", __FUNCTION__, __LINE__);printf(fmt, ##args);}
/**
* [_timeShowTask 每隔一秒原处更新显示时间]
* @param arg [NULL]
* @return [NULL]
*/
static void *_timeShowTask(void* arg)
{
time_t stTime;
char strTime[1024];
while(1)
{
time(&stTime);
ctime_r(&stTime, strTime);
PRINT_RED("The time is:%s", strTime);
sleep(1);
//打印的光标向上移动一行;让时间在原位置打印更新
printf("\033[1A");
}
return NULL;
}
int main(int argc, char *argv[])
{
const char * testStr = "This is a test sting!";
pthread_t threadID;
PRINT_RED("%s\n", testStr);
PRINT_YELLOW("%s\n", testStr);
PRINT_BLUE("%s\n", testStr);
PRINT_GREEN("%s\n", testStr);
PRINT_RED_FLIKER("%s\n", testStr);
PRINT_YELLOW_FLIKER("%s\n", testStr);
PRINT_BLUE_FLIKER("%s\n", testStr);
PRINT_GREEN_FLIKER("%s\n", testStr);
PRINT_RED_UNDERLINE("%s\n", testStr);
PRINT_YELLOW_UNDERLINE("%s\n", testStr);
PRINT_BLUE_UNDERLINE("%s\n", testStr);
PRINT_GREEN_UNDERLINE("%s\n", testStr);
PRINT_RED_INVERSE("%s\n", testStr);
PRINT_YELLOW_INVERSE("%s\n", testStr);
PRINT_BLUE_INVERSE("%s\n", testStr);
PRINT_GREEN_INVERSE("%s\n", testStr);
PRINT_DBG("%s\n", testStr);
if(0 != pthread_create(&threadID, NULL, _timeShowTask, NULL))
{
PRINT_DBG("pthread_create failed!\n");
return -1;
}
pthread_detach(threadID);
while(1)
{
sleep(50);
}
return 0;
}
After compiling and running, the display effect is as follows: