Merge branch 'master' of http://master.iot-yun.club:8088/r/raspberrypi

guowenxue

2023-07-10 5e9d03d507aad324a803eb8795e0eed6fb671761

 apue/2.Socket/ds18b20.c

@@ -98,5 +98,7 @@
    /* convert string value to float value */
    *temp = atof(ptr)/1000;
   
    close(fd);

    return 0;
}