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发表于 2012-11-13 08:48:12
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1判断语句/ y# h1 b' Q/ T+ U' Z x
if <condition> then
! F) \7 s& j$ F1 w4 N9 C8 l- [) s' B <statement sequence1>;
3 n$ M9 t( g$ I v! C. G, V elseif <condition> then5 K9 c7 P# E: J* U
<statement sequence2>;$ t' t7 q. V* W8 \1 {: m. N; d
else
+ g4 \4 l* i- o; X# S& ~ <statement sequence3>;) d6 ]& a5 S9 h$ g! ~# O
end;7 y$ U; i: Q( O
如果分支比较多，用：6 N" r/ T5 L6 }& J
inspect <expression>/ r) z) z5 G+ Y/ g/ c
when <constant_list> then+ a! }) W+ B1 b" w
<statement sequence1>;# F7 E7 e' P( `& J5 j
when <constant_list> then
7 n. e+ r/ H( O, S7 l <statement sequence2>;% W7 I* i) `$ |+ r
...$ v0 ?. J. B5 F' o5 g1 }
else
4 L$ b. d9 }5 u! e1 O: M <statement sequence3>;% D, W0 d& L" {/ h. b) O
end;! a" V8 N/ |0 n$ t4 `
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2循环语句) S* P8 l" K4 }7 y$ O
(1) from <statement sequence1>" i. p @# n; Q& e# T8 R. U
until <condition> loop
. ~2 h/ S( O$ g2 h7 k5 A, b+ ~ { <statement sequence2>;3 R# C( _0 @7 `/ Z/ Q B/ t) K
end;. j9 Z4 u: |9 m W g2 D
(2) while <condition> loop
" g0 k; _7 M) h, h6 G <statement sequence1>;. b9 a: k* Y E, e+ ^3 A
end;
) O2 R$ ]$ J6 W; K( |# ~7 O' O (3) repeat
# k4 e4 ?; E$ ` <statement sequence1>;8 S; B$ i H% ?/ ~- y4 I
until <condition>;
% Y _% z2 G# t8 H7 ? (4) for <condition> to <condition> loop
. k5 t9 K |7 l8 S, G9 z' H1 Q9 U <statement sequence1>;- e, W; E3 [7 Y' |/ j( `
next;
; G/ N$ L2 _, K* K4 `3中断语句) ?' a6 _" x1 L1 d
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 C9 H3 S' }8 X: B还有很多，如有需要我把资料发到你邮箱里 . V5 Y( P+ c( P; Z) g
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