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发表于 2012-11-13 08:48:12
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1判断语句
/ B& Q+ o/ o; z8 k* H6 H6 R0 J if <condition> then+ E$ l3 V6 E: K" t
<statement sequence1>;6 G0 W& S, i8 M+ M( j2 X
elseif <condition> then
' R1 V7 e8 b; a5 K2 }1 G4 X( E% M <statement sequence2>;$ V9 P$ t5 f4 [/ t! D5 W5 X
else . c* T; R0 s( d1 w' r6 h& x5 l" M) Z8 L
<statement sequence3>;; l d% L I8 \1 }/ s0 f
end;9 ]$ o" ^; p/ |% ^7 g/ e3 x! A8 t
如果分支比较多，用：5 w3 A+ E- v3 v2 Q# T" h3 i" V
inspect <expression>
# X! C4 i# `! x$ ~- P3 p when <constant_list> then
) ?. f5 Z, B' A0 {4 F/ b <statement sequence1>;$ @5 V3 K6 ^" I- M$ B2 B8 m
when <constant_list> then
4 g+ B, P0 Z) k8 ^ H9 q3 O" d M <statement sequence2>;% Z$ q; p/ ~5 p( u* J/ B
...
% T# G; w; N# u0 _. W6 Q- k else
3 m+ k+ v5 Q: B% h% e <statement sequence3>;
8 i# K1 E" L1 T/ N3 L# T" wend;
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8 L! o7 k4 r' `) P3 j! i2循环语句
, M% A# `- e0 ^' h7 H* }- C2 y/ m (1) from <statement sequence1>' W* g' Z3 L# l& j" h" c
until <condition> loop6 U( B% q6 B7 h$ s! q
<statement sequence2>;
$ u5 ?6 S( u1 s' k1 b ^4 I3 ` end;7 z3 b0 d3 n/ @. R9 ^4 v
(2) while <condition> loop4 l7 ~8 Z, \* \( A) H: Q# y! Y
<statement sequence1>;+ p I, ]7 A) |2 w* `8 D6 I
end;" r: B j$ S: T9 S% U3 o
(3) repeat 3 V9 u9 ?% \) V& C& q: y9 T% ^' I
<statement sequence1>;
5 }8 N9 y& c: |, P \. G; T until <condition>;
+ a3 E) g: `, } P* a: w" H (4) for <condition> to <condition> loop
( A2 g# \7 |! c, Y5 Y9 r# [ <statement sequence1>;7 D+ B7 e) j6 f! N
next;
: d$ C( Z& Q0 \+ G) W3中断语句
. V! U+ d# D2 K ?+ m! e+ q waituntil <condition> prio <integer expression>;
7 |: C( }; d0 g4 @& n& C+ t+ F, G- K" i; g+ c3 K$ i3 D5 ?
4 j4 }7 L2 }4 [* _: K3 g+ M以上为常用的函数！& P! Z$ r4 m( n$ i& T2 q
还有很多，如有需要我把资料发到你邮箱里 7 [$ j" [" I% ?+ Y0 z& y1 F _* Q; s
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