High & Low commands in pic basic

We can output any bit at the ports randomly by using the High & Low
commands.These commands are limited to the portB .So the poke command
is necessary to output the bits at the portA.
Example :
High 0 'makes the output 1 at 0th pin of portB
Low command
Low command makes the output at the specified pin low .
Example:
Low 1 'makes the output 0at 1st pin of portB