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发表于 2012-11-13 08:48:12
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1判断语句
3 ~- O J+ ^: p: g) Z: h1 Z if <condition> then$ d }4 w1 n; [: N( ?9 q. U
<statement sequence1>;
$ w T8 R0 a4 q) `& e# v+ {) U elseif <condition> then
/ T% v& i) g9 u* E <statement sequence2>;
* ?- T4 r e) L9 V2 C else
- p6 }3 {9 l: K" q6 J, m$ q' J <statement sequence3>;8 w6 M) s" s; h. D1 c0 g# O
end;
8 f7 y' I0 R& o8 f6 e如果分支比较多，用：) v* M8 a( M: ^. k5 o, t
inspect <expression>! S2 z% A9 Q% r
when <constant_list> then' B: i1 @5 l. P% s0 E
<statement sequence1>;
7 k% y4 h$ g8 K z8 t! q5 k7 H+ } when <constant_list> then7 n D/ v- `7 v5 _8 X' A
<statement sequence2>;: n9 M5 L' L0 m6 S" t
...( K! ^9 @% R, w; f: z0 A8 O
else
6 x& t7 G) A1 O4 v! M <statement sequence3>;: P5 b: h( w0 k. |$ B: \. u
end;
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' [, V3 i/ O* b8 k* E& d2循环语句& L! {6 b! M; u9 C$ v7 a. H, H' i
(1) from <statement sequence1>
" W& Z, w9 I! M4 P0 O until <condition> loop: h6 ~7 p; r6 x8 j3 x5 i
<statement sequence2>;6 O" A% b5 ?0 n2 r6 w% x0 B
end;
/ ~9 l! @- }8 c: A! F0 t (2) while <condition> loop
( @8 i) N% b6 m$ ^5 v" r) a <statement sequence1>;( x$ D1 ?" q4 O6 u
end;$ y; J- _4 s4 C
(3) repeat
& R h1 B1 ^% Y4 I <statement sequence1>;1 f0 f9 s, I& ~3 ^2 S
until <condition>;
7 E. \8 _& a( S' [ (4) for <condition> to <condition> loop
( d- p, { e; ?# E' j <statement sequence1>;
. R; Q1 i, [1 }& Q' J next;& |) _+ E0 x/ q7 e& |3 a
3中断语句" E5 N% K! N( x0 G! b& v% F
waituntil <condition> prio <integer expression>;, N: y# C0 Z. F$ _8 y6 k
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# x) V5 [4 g- R; A以上为常用的函数！( \8 E( E5 b, ]1 ~' D, s
还有很多，如有需要我把资料发到你邮箱里
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