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发表于 2012-11-13 08:48:12
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1判断语句
% G& i4 x" U7 q! a" L# U7 @ if <condition> then- \2 N! O/ a2 O3 l( M
<statement sequence1>;
2 l1 h# q- B/ g- B9 x elseif <condition> then1 V, g6 [+ x R [- p3 r) f' V% g& \, ?
<statement sequence2>;
1 O: v* l/ C9 i% Z4 Z6 c+ M2 \+ r else 7 \" W' |+ y9 ]# k; n1 v# R2 Z
<statement sequence3>;( t2 S6 X% y* V/ H& @, R
end; O/ Y$ e j6 X' c& k0 b/ t) m& X i
如果分支比较多，用：# _' ~/ [6 m& t3 S. T
inspect <expression>/ z/ J0 c" j& z2 x
when <constant_list> then
3 R3 D) S# N: s/ B2 j% r4 V. h <statement sequence1>;
! X- g/ ?/ q) `0 v* v; D0 T when <constant_list> then
, d! p- [# y" V6 H/ b <statement sequence2>;. M' Q. G/ N) E2 I
...: ~: D& t& @( e! [; `2 U$ q
else# w9 c6 g1 _7 L/ n4 B
<statement sequence3>;
7 d# c: c5 u) _end;! q6 E- S* K5 N$ n. p Z/ Z
& Z2 l$ s! E% @8 ]6 `
2循环语句1 W/ Q( L h7 B# A" ~# [
(1) from <statement sequence1>
0 K! V1 Z$ k% e. k; \- i until <condition> loop
' a' _! Y' a& T1 M5 G4 e <statement sequence2>;' \7 c3 d# I X0 x4 ]
end;1 A& O/ {9 Q& e. h
(2) while <condition> loop3 ?% w/ c9 [8 `- f7 R( Y, ]
<statement sequence1>;
\: h* }* k5 {; y9 n end;0 Q; G. i1 s/ k+ Y2 N; I# y* N
(3) repeat
# j# a2 m+ w; @% P6 { <statement sequence1>;4 b) x6 p, r2 A) [$ O* B
until <condition>;
% F* {5 Y1 F) f (4) for <condition> to <condition> loop
@8 W: b/ f/ k# ] <statement sequence1>;
4 _) @3 [1 |8 v7 v3 h6 E/ S" Y next;3 f0 A; Y' A& s9 b+ J6 Z
3中断语句
9 O$ S7 ]+ m! F# |& ?% l waituntil <condition> prio <integer expression>;4 D3 Z: T: P; V. M: i
8 E* C# b2 k; C6 k7 v
, t7 W9 n( U0 q9 I6 {以上为常用的函数！
: K3 H! ^( f6 K# L0 j T, C还有很多，如有需要我把资料发到你邮箱里
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