1、示例代码如下

2、编译运行:
gcc log.c -o log
./log
3、返回结果:cat clog.txt
2020-03-10 13:10:02 is running 10 55.550000
2020-03-10 13:10:04 is running 10 55.550000
2020-03-10 13:10:04 is running 10 55.550000
1、示例代码如下

2、编译运行:
3、返回结果:cat clog.txt
2020-03-10 13:10:02 is running 10 55.550000
2020-03-10 13:10:04 is running 10 55.550000
2020-03-10 13:10:04 is running 10 55.550000