是不是fork之后，在子进程需要把文件都关闭比较好？

https://github.com/austinsc/Poco/blob/master/Foundation/src/Process_UNIX.cpp#L200

        // close all open file descriptors other than stdin, stdout, stderr
        for (int i = 3; i < getdtablesize(); ++i)
            close(i);
--
FROM 66.152.176.*