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发表于 2012-11-13 08:48:12
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1判断语句1 T" i1 q1 _4 C5 d6 c& Z
if <condition> then
, a G2 R& [: |: F <statement sequence1>;! c" y) d) s- k
elseif <condition> then ~6 d k1 A0 ]' S5 U+ _& c, m
<statement sequence2>;% F, Z- J' e( `2 L* x1 S9 e
else
+ L8 ~1 I- a. y% B0 M# a4 c1 ] <statement sequence3>;" }) B, p: V/ L8 q% G, T" Q
end;
& z M) l F, r如果分支比较多，用：; J! C+ w% c8 _
inspect <expression>! l7 _5 s; d. l' x0 R: \9 g% I
when <constant_list> then
\. r4 V" ^ @9 d <statement sequence1>;+ q6 I' f7 Y V | a/ u. {' Z9 B0 t
when <constant_list> then7 E3 T' p0 e1 s0 z7 f& s
<statement sequence2>;
& I' t, G, [: A# _ ...
. Z' f. w" p }$ {2 D9 T else
5 r7 Z& c; K4 ] <statement sequence3>;
& B) V9 j, \7 N( M, n/ V2 Qend;
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' p& y" x( L+ L2循环语句+ p. ?. d, j6 @: ~- ?+ v& {* s+ `
(1) from <statement sequence1>0 a+ S" C6 T2 o' Q9 f
until <condition> loop
, z2 J! P! P1 G4 t5 A: l J4 ] } <statement sequence2>;
, a5 Y6 }3 S$ c; o8 A5 M1 O end;* n4 ^7 n' b( e
(2) while <condition> loop
! l! X2 z2 C6 A: z7 S+ ^* c <statement sequence1>;
7 O& f* w5 Q2 S! C' t end;
- ]1 @: e9 F8 _9 j (3) repeat
* Z. Y. F4 I: j/ B0 H <statement sequence1>;
3 }6 n% P4 n; N5 K3 ~ until <condition>;
4 d- g& r1 L5 o3 e' e% h3 _ (4) for <condition> to <condition> loop
4 _, I4 R# v8 q0 e9 w7 g. R <statement sequence1>;. e$ G# `2 v2 Q
next;
, v2 y; Z+ I# @0 @) k3中断语句. `0 n- h# E% k3 t$ Z# g% `; }
waituntil <condition> prio <integer expression>;( V0 b; V0 X D4 [1 z6 ~8 U* h* w
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以上为常用的函数！# e8 o6 D( i& W7 G* ]! P
还有很多，如有需要我把资料发到你邮箱里
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