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发表于 2012-11-13 08:48:12
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1判断语句) [' a& J$ r9 V7 l) c( _, g( ?& R% h, E. ~
if <condition> then* ^+ |6 p- v' T2 @, {
<statement sequence1>;
2 \! b9 {2 _& {# C2 f- d1 ~$ G elseif <condition> then2 ^' v' |" l I& t; {
<statement sequence2>;
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<statement sequence3>;# F3 A, p1 Q9 @7 C$ v" @$ J
end;
0 K& f5 e9 Q$ U- |如果分支比较多，用：7 d! d: X1 D3 H# B% Y
inspect <expression>
1 g' M0 F8 B" Q; d8 E5 \ when <constant_list> then0 n, D; O" b: W# s; D& |8 W; h
<statement sequence1>;
" a% s4 n# p! @" J4 R1 ?( j3 h W when <constant_list> then9 d. |( S) K6 o) n q
<statement sequence2>;4 L$ P/ Q( e* r) q" N: E
...7 j9 \8 G8 {, f0 x
else
8 F, l4 Y! g$ l/ ^# k x <statement sequence3>;3 [: d# s$ _1 S7 y
end;
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2循环语句. G: B1 s8 t: W% _
(1) from <statement sequence1>2 B7 o5 o! g8 d7 s0 [
until <condition> loop
* d- z* E) F2 Q <statement sequence2>;+ J3 X5 s8 e4 S9 h- S x: l
end;3 Y3 `: Q+ L, g' n5 q' p, p0 C3 P
(2) while <condition> loop5 t" Z8 u4 B% M4 f9 P% @. x; a
<statement sequence1>;
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(3) repeat
! j: T2 g( d D3 O( G9 B <statement sequence1>;) v' h+ u7 i g/ c+ {* ?$ ~
until <condition>;
# ?! {- f8 x# q6 [ (4) for <condition> to <condition> loop
* y4 O: m2 N! b/ P. [* ~1 N <statement sequence1>;
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3中断语句
6 N- n1 G. j; n; H4 d" ^ waituntil <condition> prio <integer expression>;
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" V/ c/ Y/ g k# K# Y7 L9 j以上为常用的函数！ P9 m. H3 w5 ~: k2 k% N% A
还有很多，如有需要我把资料发到你邮箱里 $ w% |$ r2 u! {; y% U9 P
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