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发表于 2012-11-13 08:48:12
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1判断语句
9 ^# _$ _+ g! s% X d9 f* z j if <condition> then' `/ Y2 w) @& [8 Z! j4 Y1 {$ o( R
<statement sequence1>;0 U; a$ J9 O* T1 I1 R
elseif <condition> then
' S# O/ ^$ D, l( W/ q; e' E3 x! ^ <statement sequence2>;
6 r% ~0 H) o- P# p, k else
5 L- N6 e( s. F. B8 b7 \ <statement sequence3>;9 T, J4 ^# R+ i
end;
4 P& l7 W+ T; C- q! _% N3 f% k! j如果分支比较多，用：
6 G7 q. r1 j0 W* Q) J" S inspect <expression>
$ ]" q. ^1 k, M" q, Q' F2 ] when <constant_list> then) Y) R: h' x. z; g" m9 Y# x% K
<statement sequence1>;; c* o' |1 i- t) w8 s
when <constant_list> then ~! d( B4 d* }6 [* x) ~
<statement sequence2>;+ X% @& h, W. F, l2 U: n
...
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<statement sequence3>;3 l8 A0 ]. g$ Y: \9 S. R
end;
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2循环语句8 ]/ }9 N* q! I9 Q/ q, y
(1) from <statement sequence1>
4 P3 C7 C) G: T until <condition> loop7 |( Y% o. }; S: z" z
<statement sequence2>;# j P6 H0 @6 E U, q/ n
end;, x6 L) Z" [( [1 c
(2) while <condition> loop
9 D1 u" A5 H) \( W+ u7 z <statement sequence1>;
- g7 \5 [ |% |. A2 t end;5 D* z ~( P, j3 b2 y b
(3) repeat
5 W; v6 I/ L n$ U$ U" ~ <statement sequence1>;
+ q. P7 [- ]- z4 l, N5 V& w, q until <condition>;
# R6 H, P0 |5 f: S& l (4) for <condition> to <condition> loop* E- u& H$ w: _
<statement sequence1>;
3 s- x+ R! c% V2 |; r9 e next;
. a% I% c+ W [3中断语句, p/ u2 _( q2 q' O
waituntil <condition> prio <integer expression>;2 q' I2 ]! W" I0 ~0 b r6 q9 G
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8 z; C% W" X, _, d/ z$ q' D以上为常用的函数！
0 f# X C# W% T! B还有很多，如有需要我把资料发到你邮箱里 9 g- e$ a0 g0 R9 N$ i) t% }4 J
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