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发表于 2012-11-13 08:48:12
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1判断语句* j6 n3 r7 \( K2 s* x9 q
if <condition> then* `, P2 \7 y% [/ Z" X+ B% G
<statement sequence1>;
2 t6 K9 t. w' k2 A elseif <condition> then- K& p$ n( C( [" k# Z4 L8 R& W: t
<statement sequence2>; Q" ^6 A2 F# H m7 a! C2 y
else
/ h' q& v7 ^' m$ f) j0 L$ a <statement sequence3>;
, @$ f3 w8 o# z& W end;% e* z6 }8 ^. Z3 z
如果分支比较多，用：- x D+ m$ b1 R1 m& Z; C. _
inspect <expression>
# B: r7 {. D* B2 C3 c+ z: W when <constant_list> then) S2 B% \$ {1 `* P" N
<statement sequence1>;
) C: w/ o' F* h3 m6 o when <constant_list> then
+ L; p4 t" h. j, K <statement sequence2>;
. Y$ O |- m# J. g ...
$ G' h. n; P9 b. u- h else
1 d l. a7 A! l <statement sequence3>;
1 q& V, h1 l2 k0 O4 [end;
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2循环语句
+ F1 i& P$ X+ ]+ G7 [ Y (1) from <statement sequence1>: e9 A& o @2 E2 F
until <condition> loop
- ?0 t* `" j7 w& u% _ <statement sequence2>;
) I7 m4 Q) [/ |5 t& p. {. I end;+ w8 b) c& V. w
(2) while <condition> loop
. V( N4 q) x4 C+ r: ?3 n <statement sequence1>;) K0 G8 m7 D! T" {, G/ ]
end;
v2 g! D0 W" X0 \5 R0 w (3) repeat
. F& Y3 h2 j! B; Z3 s8 y <statement sequence1>;5 m9 J% p$ w0 @' H) {
until <condition>;3 `, `! d6 _6 Q
(4) for <condition> to <condition> loop
( u5 [5 |, \& y <statement sequence1>;+ V: r, q9 I6 f; U
next;
7 y2 R6 k" Z0 x' ~7 L+ D; ]3中断语句
, a+ m T# F4 [8 P3 W waituntil <condition> prio <integer expression>;) b1 V. L( f4 d- B6 U; M8 q2 `$ d
) `7 w& O1 r: V6 X: l. E& H" ?7 `7 K
以上为常用的函数！' X& _' d* L; u8 r7 o* e; y
还有很多，如有需要我把资料发到你邮箱里 + m6 f. u1 r* r: |+ s
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