What are the characteristics of the selective process program?

* Question

* Answer

A selective flow program with 3 branches, the characteristics of which are as follows.

(1) Which process is selected from the three processes is determined by the transition conditions X0, X10, and X20.

(2) Branch transition conditions X0, X10, () 20 cannot be turned on at the same time, and which branch is turned on first, which branch is executed.