一、文件操作
见链接 https://www.cnblogs.com/dolphin0520/archive/2011/10/05/2199598.html
二、日志封装实现
FILE *LOG_FP; #define LOG(level, format, ...) \ LOG_FP = fopen("/home/macrored/Desktop/test.log", "a"), \ fprintf(LOG_FP, "[%s|%s@%s:%d] " format "\n", \ level, __func__, __FILE__, __LINE__, ##__VA_ARGS__ ), \ fclose(LOG_FP)
三、实现效果
#include <stdio.h> FILE *LOG_FP; #define LOG(level, format, ...) \ LOG_FP = fopen("/home/macrored/Desktop/test.log", "a"), \ fprintf(LOG_FP, "[%s|%s@%s:%d] " format "\n", \ level, __func__, __FILE__, __LINE__, ##__VA_ARGS__ ), \ fclose(LOG_FP) int main() { LOG("LOG_DEBUG", "a=%d", 10); return 0; }
日志函数内容输出如下:
macrored@ubuntu:~/Desktop$ cat test.log [LOG_DEBUG|[email protected]:11] a=10
参考链接 https://blog.csdn.net/shanzhizi/article/details/8983768