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发表于 2012-11-13 08:48:12
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1判断语句1 c- Z8 ]7 }, A5 k% H/ M( ]6 S0 x7 w
if <condition> then
" ]- C3 l( D% b <statement sequence1>;9 j0 m" @5 z2 C- b
elseif <condition> then8 O$ U# z ?$ M9 s4 D0 }! T
<statement sequence2>;3 D; z# [. a$ t' D. [$ j# p
else
1 n: B$ J3 a. U+ N <statement sequence3>;0 o" m" w4 l" b ^
end;
Y% L2 N' S6 m. s. t( m [' |如果分支比较多，用：
+ |+ G! x# f. ?0 e+ p" y$ C inspect <expression>; e" L3 y# X3 ], B+ y
when <constant_list> then' [+ \: T$ o. b9 z
<statement sequence1>;
$ E1 k. a# \. f& n' b+ ^' O when <constant_list> then
! J+ E( r5 d' U( ]" J+ M <statement sequence2>;
K+ I0 S# W9 y5 |7 J* p' ~& p2 ~* J ...
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<statement sequence3>;5 N7 w; w% e0 B+ f# \6 w
end;3 t& v# S( D( o" {2 y
# O( z8 \! D, U* M6 W, j2循环语句
0 x1 ?% ]1 ]' X8 @% J* h$ E- D (1) from <statement sequence1>
% T2 V* V! j, h0 \5 G until <condition> loop& W! s& P) V1 [- o6 H
<statement sequence2>;
# \* \, Y/ t5 ^6 ^3 s end;
" v2 `* P4 w7 R/ ~ (2) while <condition> loop
/ R1 g6 Q$ b) h, D: h& a* `( R <statement sequence1>;
# U% V: X e# P+ H" s9 N& } end;% q/ C/ V4 N" j0 R7 t( @' Z- j' e! U
(3) repeat 0 O1 A% c5 I% s4 f% K- ?$ S
<statement sequence1>;2 N8 M4 {5 z9 ~3 ^. o8 f
until <condition>;. i1 F- t- g! K9 `! l% U2 l+ k
(4) for <condition> to <condition> loop$ \* ]2 ^. T* |0 e/ M6 y
<statement sequence1>;& ` W& |! Q+ T, h& `
next;, Q! M* r2 f2 E5 t+ r1 ?& W
3中断语句& {$ g# c) P9 P7 ?; e
waituntil <condition> prio <integer expression>;
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5 I, i! D+ W; [& q! R以上为常用的函数！8 w* [, p4 L1 n a; @, A* Y! V
还有很多，如有需要我把资料发到你邮箱里
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