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发表于 2012-11-13 08:48:12
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1判断语句
9 Y& e [8 x/ R% G! W% s if <condition> then, K/ _5 X7 s8 a7 `( e3 L" Z9 ~
<statement sequence1>;
) F3 u' V C, G elseif <condition> then' L, j6 g" a& Y- p$ }
<statement sequence2>;
/ U' Y* ?, i# G, ^2 D else 2 b3 I1 i9 I$ _; w5 g; [
<statement sequence3>;) Y& o7 S* T* X/ \) x/ w# [
end;2 a1 e. N# U' }4 y6 R9 k
如果分支比较多，用：
& j8 p! Q) i) a8 m4 D inspect <expression>- W; B8 u6 l: u: o" m
when <constant_list> then$ }8 }+ B [ o: A, b$ L/ x
<statement sequence1>;
% e* Y2 }2 U) ~ when <constant_list> then1 [+ M! c. c& p1 v1 u
<statement sequence2>;/ T7 }& e, u- M* i0 F6 O
...
7 H' R+ g) F+ @! ^+ v, O+ j5 C) M else( @2 d6 z; {0 r8 _3 L2 l
<statement sequence3>;
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8 C2 i! H! K- M5 x7 v H$ W! j2循环语句& a$ s! B8 Q- C4 G3 A
(1) from <statement sequence1>
! d: ]* |. J: C- E& T1 C$ r( {' l until <condition> loop
/ m# [0 @9 V/ @' m; P/ F <statement sequence2>;3 A; I1 r; w/ s- J8 K' r
end;
5 A" c3 T! J' s0 d (2) while <condition> loop
6 l1 f$ \4 J3 U8 ~ <statement sequence1>;
7 T- a/ D! ]2 [" C# ^4 B( l3 u end;. G0 R7 Q( ?6 R
(3) repeat
' S4 y) s g; C& C# `7 V7 O9 ~' X! f <statement sequence1>;7 g9 E) L6 V/ J3 ^+ u K
until <condition>;
5 n* o: x+ [) ?! z! q1 j (4) for <condition> to <condition> loop
! d# W. F, H" @ S+ J9 _( z4 S) G <statement sequence1>;* @2 o/ q" ]8 l# J
next;; L4 q8 k4 v1 C3 i' S4 W9 ~ K
3中断语句7 q" D/ q. C) y. ~- R" d
waituntil <condition> prio <integer expression>;
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" n% A* T$ e9 ^6 J c以上为常用的函数！) n7 J" J2 K- c$ `6 O% p
还有很多，如有需要我把资料发到你邮箱里
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