stdio.h
简介:
向标准输入输出里操作
函数列表:
``int64_t put_string(char *str, uint64_t front_color, uint64_t bg_color)``
    输出字符串(带有前景色,背景色)
``int printf(const char *fmt, ...)``
    
    就是正常的 ``printf`` 
``int sprintf(char *buf,const char *fmt,...)```
    就是正常的 ``sprintf``
``int vsprintf(char *buf,const char *fmt,va_list args)``
    格式化,不建议调用,请用 printf 或 sprintf 替代。
宏定义
### 字体颜色的宏定义
    ``#define COLOR_WHITE 0x00ffffff  //白``
    ``#define COLOR_BLACK 0x00000000  //黑``
    ``#define COLOR_RED 0x00ff0000    //红``
    ``#define COLOR_ORANGE 0x00ff8000 //橙``
    ``#define COLOR_YELLOW 0x00ffff00 //黄``
    ``#define COLOR_GREEN 0x0000ff00  //绿``
    ``#define COLOR_BLUE 0x000000ff   //蓝``
    ``#define COLOR_INDIGO 0x0000ffff //靛``
    ``#define COLOR_PURPLE 0x008000ff //紫``
### 无需使用
    
    ``#define SEEK_SET 0 /* Seek relative to start-of-file */``
    
    ``#define SEEK_CUR 1 /* Seek relative to current position */``
    
    ``#define SEEK_END 2 /* Seek relative to end-of-file */``
    ``#define SEEK_MAX 3``