switch (expression)
{
            case const1:
                        statement1;
                        statement2;
            case const2:
                        statement3;
                        …………
                        statement4;

            case constx:
                        statement5;
                        statement6;
            default :
                        statement7;
                        statement8;
}

#include <16F877.h> //register definition file for 
#fuses HS,NOWDT   //a Microchip PIC16F877
#use delay(clock=10000000 //setup the RS232 port for standard output
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,stream=RS232,bits=8)

#include <stdio>

void main(void) 
{
            unsigned char c ;

            port_b_pullups(TRUE);
            set_tris_b (0xFF) ; // set port B for all input
            while(1)
{
            c = input_b( ) & 0xF ; // read the lower nibble of port B 
            switch( c )
            {
                        case '0' "
                        case '1' : // you can have multiple cases 
                        case '2' : // for a set of statements 
                        case '3' :
                                    printf("c is a number less than 4 \n");
                                    break; // break to skip out of the loop 
                        case '5' : // or just one is ok ..
                                    printf("c is a 5 \n") ;
                                    break;
                        default :
                                    printf("c is 4 or is > 5 \n");
            }
}
}

#include <16F877.h> //register definition file for 
#fuses HS,NOWDT   //a Microchip PIC16F877
#use delay(clock=10000000 //setup the RS232 port for standard output
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,stream=RS232,bits=8)

 
#include <stdio>
 
void main(void) 
{
           int c ;
 
while(1)
{
while(1)
           {
                       if (c >100)
                                   break ;            // this will take us out of this while
                       +cc ;              
#include <16F877.h> //register definition file for 
#fuses HS,NOWDT   //a Microchip PIC16F877
#use delay(clock=10000000 //setup the RS232 port for standard output
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,stream=RS232,bits=8)

 
#include <stdio>
 
void main(void) 
{
           int c ;
 
while(1)
{
while(1)
           {
                       if (c >100)
                                   break ;            // this will take us out of this while
                       +cc ;                            //block , clearing c…
                       printf("c =  %d \n" , c );
           }
c = 0 ;                          //clear c and then things will begin again .
}// printing the values 0 – 100 , 0 – 100 , etc
}
             //block , clearing c…

                       printf("c =  %d \n" , c );
           }
c = 0 ;                          //clear c and then things will begin again .
}// printing the values 0 – 100 , 0 – 100 , etc
}

#include <16F877.h> //register definition file for 
#fuses HS,NOWDT   //a Microchip PIC16F877
#use delay(clock=10000000 //setup the RS232 port for standard output
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,stream=RS232,bits=8)

#include <stdio>

void main(void) 
{
            int c ;

while(1)
{
            c = 0 ;
while(1)
            {
                        if (c >100)
                                    continue ;       // this will cause the printing to 
// stop when c > 100 , because the 
// continue will cause the rest of 
// this loop to be skipped 
                        +cc ;                
                        printf("c =  %d \n" , c );       // no code after the continue 
// will be executed 
            }
}
}

goto identifier ;
……..
identifier :
            statement ; 

or 

identifier :
            statement ; 
            ……
            goto identifier ;

#include <16F877.h> //register definition file for 
#fuses HS,NOWDT   //a Microchip PIC16F877
#use delay(clock=10000000 //setup the RS232 port for standard output
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,stream=RS232,bits=8)

#include <stdio>

void main(void) 
{
            int c , d ;

while(1)
{
start_again :
c = 0 ; 
            d = -1 ;
while(1)
{
            if (d == c)
goto  start_again ; // ( stuck? Bail out !)
            d = c ;                          // d will remember where we were 
            if(c > 100)
                        continue ;                   // this will reinitiate this 
// while loop
                                    ++c ;               // d will checked to see if c is stuck 
                                    Printf("c =   %d \n" , c ) ;
// because c won't change ( > 100 !!)
                        }
}
}

sleep( ) ;                     // this function performs a 1 second delay ,
// with no parameters, in or out
printf("this is a parameter  %d" , x ) ; 
// printf will print its parameters
c = getchar( ) ;           // getchar will return a value from the 
// standard input

type function_name( type param1 , type param2 , …)
{
           statement1 ;
           statement2 ;
           ………….. 
statementx ;
}

unsigned  char getchar(void)
{
           while ( ( PIR & 0x20) == 0 )
                       ;                                   // wait for character to arrive 
           return RCREG ;                    // return its unsigned char value to the caller
}