使用C更改文字颜色

只能部分回答该问题，因为不指定彩色输出，它只知道文本.因此，解决方案取决于目标平台，从注释中可以明显看出，OP对多个平台都感兴趣.

This question can only be partially answered because doesn't specify colored output, it only knows about text. So solutions are dependent on the target platform and from the comments, it's clear the OP is interested in more than one platform.

我做了一段时间自己的实现，可以在支持ANSI颜色的* nix终端和win32控制台中使用，我已经在注释中提到过，但是要得到答案，应将其简化为最低限度，所以这是一个例子:

I did my own implementation a while back that works in *nix terminals supporting ANSI colors and in a win32 console, which I already referred to in comments, but for an answer, this should be simplified to the bare minimum, so here comes an example:

#ifdef _WIN32
#include <windows.h>    // for win32 API functions
#include <io.h>         // for _get_osfhandle()
#else
#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE   // enable POSIX extensions in standard library headers
#endif
#include <unistd.h>     // for isatty()
#endif

#include <stdlib.h>
#include <stdio.h>

// use an enum for platform-independent interface:
typedef enum TextColor
{
    TC_BLACK = 0,
    TC_BLUE = 1,
    TC_GREEN = 2,
    TC_CYAN = 3,
    TC_RED = 4,
    TC_MAGENTA = 5,
    TC_BROWN = 6,
    TC_LIGHTGRAY = 7,
    TC_DARKGRAY = 8,
    TC_LIGHTBLUE = 9,
    TC_LIGHTGREEN = 10,
    TC_LIGHTCYAN = 11,
    TC_LIGHTRED = 12,
    TC_LIGHTMAGENTA = 13,
    TC_YELLOW = 14,
    TC_WHITE = 15
} TextColor;

// set output color on the given stream:
void setTextColor(FILE *stream, TextColor color);

int main(void)
{
    puts("Color test.");
    setTextColor(stdout, TC_GREEN);
    puts("This is green!");
    setTextColor(stdout, TC_LIGHTGRAY);
    puts("back to normal.");
    return EXIT_SUCCESS;
}

#ifdef _WIN32

void setTextColor(FILE *stream, TextColor color)
{
    int outfd = fileno(stream);
    HANDLE out = (HANDLE)_get_osfhandle(outfd);
    DWORD outType = GetFileType(out);
    DWORD mode;
    if (outType == FILE_TYPE_CHAR && GetConsoleMode(out, &mode))
    {
        // we're directly outputting to a win32 console if the file type
        // is FILE_TYPE_CHAR and GetConsoleMode() returns success

        SetConsoleTextAttribute(out, color);
        // the enum constants are defined to the same values
        // SetConsoleTextAttribute() uses, so just pass on.
    }
}

#else

static const char *ansiColorSequences[] =
{
    "\x1B[0;30m",
    "\x1B[0;34m",
    "\x1B[0;32m",
    "\x1B[0;36m",
    "\x1B[0;31m",
    "\x1B[0;35m",
    "\x1B[0;33m",
    "\x1B[0;37m",
    "\x1B[1;30m",
    "\x1B[1;34m",
    "\x1B[1;32m",
    "\x1B[1;36m",
    "\x1B[1;31m",
    "\x1B[1;35m",
    "\x1B[1;33m",
    "\x1B[1;37m"
};

static const char *ansiColorTerms[] =
{
    "xterm",
    "rxvt",
    "vt100",
    "linux",
    "screen",
    0
    // there are probably missing a few others
};

// get current terminal and check whether it's in our list of terminals
// supporting ANSI colors:
static int isAnsiColorTerm(void)
{
    char *term = getenv("TERM");
    for (const char **ansiTerm = &ansiColorTerms[0]; *ansiTerm; ++ansiTerm)
    {
        int match = 1;
        const char *t = term;
        const char *a = *ansiTerm;
        while (*a && *t)
        {
            if (*a++ != *t++)
            {
                match = 0;
                break;
            }
        }
        if (match) return 1;
    }
    return 0;
}

void setTextColor(FILE *stream, TextColor color)
{
    int outfd = fileno(stream);
    if (isatty(outfd) && isAnsiColorTerm())
    {
        // we're directly outputting to a terminal supporting ANSI colors,
        // so send the apppropriate sequence:
        fputs(ansiColorSequences[color], stream);
    }
}

#endif

注释1 :我的原始代码还有其他功能，包括通过管道发送ansi颜色代码，可能不是您想要的，具体取决于您的位置预期输出将通过管道传递到.它还具有类似于printf()的支持颜色的界面.您可以在此处在核心"库中找到它.

Note 1: My original code does a little more, including sending ansi color codes through pipes as well, this might not be what you want, depending on where you expect output to be piped to. It also has a printf() like interface supporting colors. You can find it here, in the "core" library.

注释2 :如果您最终想用自己的终端做更多的事情，而不仅仅是颜色，例如控制光标，输出到固定位置等，建议您使用诅咒反而. Linux系统上的默认实现是 ncurses ，对于Windows，您可以使用

Note 2: If you ultimately want to do more with your terminal than just colors, like e.g. controlling the cursor, outputting to a fixed position, etc, I suggest you use curses instead. The default implementation on Linux systems is ncurses, for windows you can use pdcurses -- the same code can be built/linked against ncurses or pdcurses, depending on your target platform.