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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;
. b3 G1 _, U$ A elseif <condition> then
2 W8 J9 ]+ X1 m+ U% R& w5 o <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：& h. f5 J7 v: z2 e
inspect <expression>. O: z! Q/ h4 z8 b/ v
when <constant_list> then
3 U8 p6 w; n$ n3 T8 i: N! e% N <statement sequence1>;) W, X3 Q+ M: u1 b
when <constant_list> then8 }) ~3 c$ H* l9 S9 I2 N
<statement sequence2>;1 |; {; I, `/ ~ c
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else2 c% g5 L8 c3 `4 u F
<statement sequence3>;7 U& F& {+ a$ _/ l7 E; \# v
end;- }9 e8 n h+ |9 j. k$ ?9 s! h
+ d5 H1 X0 H& z0 u2循环语句( M# K& t5 D3 r- }
(1) from <statement sequence1>
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- G# t e Y' ?- q& u <statement sequence2>;6 U S! `3 x) i, P! |' A" x3 k
end;9 u4 ]! ?5 ^% K; O# G) H% O# Z
(2) while <condition> loop
; I( s! W1 A6 v- {; J) g* n& O <statement sequence1>;
. i" x8 T. q. P H' d* I end;
; R& k+ i }, R4 Z' h4 b5 u (3) repeat 7 W; p3 d4 m) {+ a) g0 q; }
<statement sequence1>;6 C$ L$ p: d6 w5 j* n3 Q6 h
until <condition>;+ [- a% o/ V5 R: m- _8 v: F; x3 t
(4) for <condition> to <condition> loop
& I5 j% ]9 l/ @* y6 Q, B b <statement sequence1>;
9 i D- B& H( d w# B/ @ next;* r8 ~, q% @, P9 O; b
3中断语句. c; @2 w* M: D/ F" x# {* U' f
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% w$ B- F8 F% L4 a5 y w. c; g还有很多，如有需要我把资料发到你邮箱里 , Z2 V a5 H6 T; K
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