B.2.1.11 Discrete Data

discretewrite	Create a new discrete data node
	`dics-id:I=`discretewrite`(base-id:I,zone-id:I,disc-name:S)`
	$\rightarrow$ No Comment
ndiscrete	Get count of discrete node
	`number-of-discrete:I=`ndiscrete`(base-id:I,zone-id:I)`
	$\rightarrow$ No Comment
discreteread	Get the name of discrete node
	`disc-name:S=`discreteread`(base-id:I,zone-id:I,disc-id:I)`
	$\rightarrow$ No Comment