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发表于 2012-11-13 08:48:12
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1判断语句# K/ [3 v/ b( i$ F% }# d8 p+ \
if <condition> then2 g+ y1 v8 _# y. D; b4 c
<statement sequence1>;
7 y7 _5 g9 s+ V+ }/ S elseif <condition> then& ~6 q, A9 ^% Q8 K3 A
<statement sequence2>;+ f' z* O% A1 h) f E' v6 L, R' t$ r
else
. ^$ q! B8 X c/ m/ G! d$ n4 E <statement sequence3>;! F* b* ` L" X9 s
end;5 k4 C: \" ?9 B s$ i: w
如果分支比较多，用：1 c8 Z9 G, T! g
inspect <expression>6 Y- w! f, F) F1 N
when <constant_list> then o2 d4 L0 V w! ^7 ^- l
<statement sequence1>; _ s! s* ]6 c) @6 D# x0 @1 K
when <constant_list> then
+ J0 p0 f( x0 q& b# t <statement sequence2>;
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else+ O2 e# i3 N$ M( w) i/ f; y0 u
<statement sequence3>;
/ M c- v! L; I/ n* Z0 t3 nend;
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- t* V" A L" i1 C2循环语句) L6 S4 X- ?8 _ z- {
(1) from <statement sequence1>9 h7 d' R% e0 F# w) k, q
until <condition> loop8 }, I, H) [" l- m& z- Y e
<statement sequence2>;: M$ s& @0 d | B
end;
# i7 E% v2 G) J; t \+ M (2) while <condition> loop
! o1 [/ B& m. U o" l7 q" t% G' P <statement sequence1>;
& g! I/ o. V6 o7 t# b- I+ [, L end;
( K( e! a) g3 {0 b- Y (3) repeat
- E4 A! K5 E! C7 n' o# t <statement sequence1>;7 S5 `3 J/ Z# L- Q6 o
until <condition>;
1 g' u( }" j& F& |' i) w: F* e5 O. S (4) for <condition> to <condition> loop; P8 h! `1 w4 E$ R1 T
<statement sequence1>;; G8 }" Y$ l) _5 B; x
next;' p6 J; q. C# B+ V: Q
3中断语句
, x: d+ I& ^7 e$ V$ j" W3 w waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 h0 w B3 I6 V$ ~2 q/ C/ C5 Z
还有很多，如有需要我把资料发到你邮箱里 " f }3 o. C8 Q* t7 Q5 Z1 y
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