Image bm156.GIF Conditional Executing of Commands
Program Control
 
Image bm156.GIF condition heading
Image bm169.GIF condition test
Image bm170.GIF commands at condition fulfillment
Image bm171.GIF commands at condition non-fulfillment
 
The conditional executing of commands serves to branch the program depending on a condition validity. In the condition test a logical term can be quoted, which will be evaluated during program execution. If the logic term holds, a group of commands situated in the branch will be executed to fulfill the condition. Otherwise a group of commands situated in the branch for condition non-fulfillment will be executed.
 
Example of using:
 
Image bm172.GIF

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