程序控制概述

This section covers the GRIP statements that provide such capabilities as conditional branching, unconditional branching, looping etc. The statements that call and manage subroutines are also included in this section. The statements have been grouped alphabetically to help you find the specific statement you want as quickly as possible.

NOTE: GRIP allows a total of 1000 labels per subroutine. The DO loop generates two labels, the CALL command generates a label, and the IFTHEN/ELSE/ELSEIF/ENDIF uses 2 labels plus 1 for every ELSEIF. These labels count against the total you can use.