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发表于 2012-11-13 08:48:12
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1判断语句/ _8 y7 X- }/ {8 O* w- u: x
if <condition> then' ]( X6 r# {9 A
<statement sequence1>;
. v2 t7 X# g* ^, q, o+ _ elseif <condition> then( I$ Q" d/ w! S& ]" e& e; I
<statement sequence2>;# e$ W$ P$ @! {6 p
else & L9 s% |( l% { u7 F g
<statement sequence3>;* w7 T' D0 F% C4 Z: T: A7 s
end;+ a' g! r# i8 [* l
如果分支比较多，用：0 B& V3 G X+ h/ N
inspect <expression>
: @7 ^" ^8 \ O' v9 ^* x9 @! I when <constant_list> then0 h4 r8 G3 ~5 o' Q% h, b4 D
<statement sequence1>;8 I2 C% Z& ?9 u4 _
when <constant_list> then
4 T% h' Z% S1 s8 l! @ <statement sequence2>;
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else3 W1 r# Y% v' z2 q" x
<statement sequence3>;
7 ~% [# S- l7 @; I: {% Pend;
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+ L$ r& F, X( N0 Y2循环语句
' |, g- o; d- ]7 a (1) from <statement sequence1>
8 L- {4 |% s0 Z6 x g/ ? until <condition> loop
2 Y2 W4 \; Q# y. j, L <statement sequence2>;/ l; y R' O; r5 Y; t0 s
end;
& j4 d) N, [* _2 _ (2) while <condition> loop
7 g1 V I; a1 i: T8 _' z: C <statement sequence1>;8 c5 y! Z n( }# W" s
end;* s- I4 {- L3 a
(3) repeat 2 \1 ~/ ~# [7 W8 W. D1 a( ^8 @/ e
<statement sequence1>;2 h/ h1 Y& m# D9 ^. U1 s5 ?5 p. e
until <condition>;0 g. H* Y! W8 x @3 q: R3 O; i
(4) for <condition> to <condition> loop
. s" Z" [! a; G* h; @' o% | K! b5 r <statement sequence1>;
" {+ }, H) s, q* p next;2 ~% r9 J1 e( i1 t5 G/ u4 y
3中断语句
$ t- u+ K6 }0 I0 }+ I T waituntil <condition> prio <integer expression>;
5 e! ^; M* a9 `' Y# z+ g$ J7 p9 I- r W6 X! l8 `) s
* l4 C A4 x# y- q5 L$ S2 ]以上为常用的函数！, Q: b& y" L5 j) }0 t" V
还有很多，如有需要我把资料发到你邮箱里 8 I) _0 O, l0 ^ }+ m# u, o
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