Printf output font color

Printf output font color favorites
Sometimes, in order to enable the font color and generate a simple flickering function when the terminal outputs, close up the following code
Implements the hello World color output, and generates a flickering function every second.
(Note: You must determine the terminal type)

Code:

# Include <stdio. h>
# Include <unistd. h>
# Include <signal. h>
# Include <stdlib. h>

Int flag = 0;

Void sig_int (int signum)
{
If (flag = 1)
Fprintf (stderr, "/033 [47; 31 mhello world/033 [5 m ");
Fprintf (stderr, "/033 [;/033 [0 m ");
Fprintf (stderr, "/033 [;/033 [0 m ");
Printf ("/N ");
Exit (0 );
}

Int main ()
{
Int I = 0;
Struct sigaction sig_act;
Sig_act.sa_handler = sig_int;
Sigemptyset (& sig_act.sa_mask );
Sig_act.sa_flags = 0;
If (sigaction (SIGINT, & sig_act, null) <0)
{
Fprintf (stderr, "signal error/N ");
Exit (1 );
}
While (I ++ <10)
{
Fprintf (stderr, "/033 [;/033 [s ");
Fprintf (stderr, "/033 [47; 31 mhello world/033 [5 m ");
Flag = 0;
Sleep (1 );
Fprintf (stderr, "/033 [;/033 [U ");
Fprintf (stderr, "/033 [;/033 [K ");
Flag = 1;
Sleep (1 );
}

Fprintf (stderr, "/033 [47; 31 mhello world/033 [5 m ");
Fprintf (stderr, "/033 [;/033 [0 m ");
Printf ("/N ");
Return 0;
}

This program outputs Hello world 10 times and then exits. A signal is used to restore the color of the default terminal output.
In addition, let's talk about how to output the color and color code.

Format:

 

Code:

Printf ("/033 [text background color; font color M string/033 [0 m ");

Printf ("/033 [47; 31 mhello world/033 [5 m ");
47 is the color of the background, 31 is the color of the font, and hello World is the string./033 [5 m is the control code.

Color Code:

 

Quote:

Color Range: 40--49 color: 30--39
40: Black 30: Black
41: Red 31: red
42: Green 32: Green
43: yellow 33: Yellow
44: Blue 34: Blue
45: Purple 35: Purple
46: dark green 36: dark green
47: White 37: white

ANSI control code:

 

Quote:

/033 [0 m close all attributes
/033 [1 m set high brightness
/03 [4 m underline
/033 [5 m flashing
/033 [7 m reverse display
/033 [8 m blanking
/033 [30 m --/033 [37 m sets the foreground color
/033 [40 m --/033 [47 m set the background color
/033 [move the NA cursor up n rows
/03 [move the Nb cursor down n rows
/033 [the NC cursor shifts n rows right
/033 [Nd cursor shifts n rows left
/033 [Y; XH: Set the cursor position
/033 [2j clear screen
/033 [k clear content from the cursor to the end of the line
/033 [s Save the cursor position
/033 [U restore cursor position
/033 [? 25l hide the cursor
/33 [? 25 h show cursor

In this way, dynamic output can be achieved in some cases.

Site: http://blog.sina.com.cn/s/blog_4c12aff701008284.html

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