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发表于 2012-11-13 08:48:12
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1判断语句
* d) h: J9 {, V9 f! B3 T if <condition> then
( {/ O6 H. }1 d2 F' @! S4 K <statement sequence1>;
3 x% u' X# D/ A$ |& r' L9 L: q elseif <condition> then2 [4 U) D+ A, B! v9 h
<statement sequence2>;
( P; ~2 i! K0 q# ]! d else 8 d# p2 E" U, a# ?, R
<statement sequence3>;" H* u0 s$ X" i) X- p: ~3 h
end;
9 D$ |" C9 G7 K! q" x如果分支比较多，用：! `9 r8 K: J% `7 E
inspect <expression>
1 p; m' W# K5 E+ P9 u when <constant_list> then
?- C) L! y/ w, Z5 S; v, z <statement sequence1>;1 k! K6 P- {) ^2 T
when <constant_list> then' S' V. G8 P) O: r r5 s* ?
<statement sequence2>;( Z* F q9 W% @( R& {; y
...
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<statement sequence3>;
5 B o p/ E Q) B6 Rend;1 c, e( {$ _! |' i
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2循环语句
" G& k$ a$ |7 g2 k7 v (1) from <statement sequence1>
) i) |/ R# W; {! ] until <condition> loop
?1 H8 `6 w' [. T1 m+ h9 Y* k6 D <statement sequence2>;
9 Y" c& ^) f& r; p5 Y" `7 F end;7 m: \; X3 k1 r: e
(2) while <condition> loop1 c8 d6 i1 y- S* n
<statement sequence1>;2 i- a# K- U# c2 c, v
end;
9 S5 ]4 s3 G9 T7 A7 S (3) repeat
8 s3 B4 m1 g2 H j' g <statement sequence1>;3 K- F4 b. k. b; ~4 s. Z5 w' R
until <condition>;
A9 j7 M3 d' n. H6 M) o (4) for <condition> to <condition> loop
; n( W$ N2 a, v" z0 g <statement sequence1>;( T: I* v* d3 `7 K; d9 Z, h& [
next;
) c" h5 D: S4 W4 a1 Y- @! _3中断语句
! U4 ^- h! W, r waituntil <condition> prio <integer expression>;
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7 V8 ?/ I; P/ U: T7 h以上为常用的函数！5 q8 W8 \ O* M7 U' M: r
还有很多，如有需要我把资料发到你邮箱里 8 h$ z+ M, V p7 b; h
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