Add TCP and UDP socket server sample code in 4.Socket_Server

guowenxue

2018-10-30 ba7f217b4121935439aec339529b1c39df9e1bba

 modules/c/ds18b20.c

@@ -116,5 +116,7 @@
    /* convert string value to float value */
    *temp = atof(ptr)/1000;
   
    close(fd);

    return 0;
}