Introduction - If you have any usage issues, please Google them yourself
Of the PL/0 expansion following changes:
(1) Add a word: reserved word ELSE, FOR, STEP, RETURN
Operator+=,-=,++,--, ∧, ∨, ┓
(2) modify the words: inequality# changed <>
(3) increase the ELSE clause of conditional statement
Basic content (score range: "in", "pass" or "fail")
(1) Expansion assignment operator:+ = and-=
(2) expansion of the statement (Pascal s FOR statement):
① FOR <variable>: = <expression> STEP <expression> DO <statement>
② FOR <variable>: = <expression> STEP <expression> DO <statement>
Among them, the statement ① loop variable step size of 1,
Statement ② loop variable step size to-1.
Increase in computing:++ and-.