打印带颜色的简单的log文件

建立一个名为 log_R.h的头文件

#ifndef _LOG_R_H_#define _LOG_R_H_#include <stdio.h>#include <errno.h>#include <string.h>#include <stdlib.h>#define RED     "\e[0;31m"#define YELLOW "\e[0;33m"#define CYAN    "\e[0;36m"#define COLOUREND "\e[0m"#define clean_errno() (errno == 0 ? "NONE" : strerror(errno))#define log_err(M,...) fprintf(stderr," "RED" [ERROR] (%s:%d: errno: %s) " M " "COLOUREND" \n",__FILE__, __LINE__, clean_errno(), ##__VA_ARGS__)#define log_warn(M, ...) fprintf(stderr, " "YELLOW" [WARN] (%s:%d: errno: %s) " M " "COLOUREND" \n", __FILE__, __LINE__, clean_errno(), ##__VA_ARGS__)#define log_info(M, ...) fprintf(stderr, " "CYAN" [INFO] (%s:%d) " M " "COLOUREND"\n", __FILE__, __LINE__, ##__VA_ARGS__)#endif