Variable Declaration:

                         struct  struct_name  var_name;

                                    or

                               struct struct_name {
                                DataType member1_name;
                                DataType member2_name;
                                DataType member3_name;
                                          …
                                } var_name;  
                       

Access data members:

var_name.member1_name;
var_name.member2_name;
…

Assign values:

                         1) Using Dot(.) operator

                         var_name.memeber_name = value;

                         2) All members assigned in one statement

                             struct struct_name var_name = 
                             {value for memeber1, value for memeber2 …so on for all the members}