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发表于 2012-11-13 08:48:12
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1判断语句& L6 U( o* Y' V- U3 E) m
if <condition> then
5 ]% c4 S, x4 K. V$ ? z: o9 F <statement sequence1>;4 R ^) n' C! Q3 U
elseif <condition> then
% M7 P0 |& H2 t3 x <statement sequence2>;- s) q2 |( l! W( f0 d
else
7 \% \$ }8 G+ U$ q <statement sequence3>; |5 u8 ^, w) N) e) }( `6 c7 d
end;
: D5 t: ]2 u0 H& z如果分支比较多，用：# R" q4 I' Z: f
inspect <expression>; M7 S9 P% U2 T- e6 j
when <constant_list> then
( A6 @; p4 O$ m) ^+ F7 T | <statement sequence1>;7 Q+ N) U$ x+ i$ n8 T3 {& }8 r7 _
when <constant_list> then
K1 `1 X- F1 E4 x! J# M# n <statement sequence2>;( S7 P* A' |4 B5 ~) T. P
...
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<statement sequence3>;, ^* @3 V, n W: U! D% z0 X2 X
end;
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2循环语句- e) J9 I; M- H
(1) from <statement sequence1>
! X( @" `. B0 G1 h3 O: ?8 v until <condition> loop
! i. }3 y# z9 S <statement sequence2>;
, U7 A! ^, Y" ^. e) q4 k l end;
% S% g. {, H4 c, j6 B/ z# f8 U# a! T (2) while <condition> loop- a3 ~" F- L! {& P) s* r, p
<statement sequence1>;
( P P; v2 |3 n# ^# U9 R. H, I! X end;
1 j. W' N& z+ b8 K (3) repeat
3 q1 Z" X! G8 Z% A, S( q <statement sequence1>;
# ]" V; i+ l1 u Y) U% S/ k$ v. q" N until <condition>;
3 \- F# Q8 x) E; D+ X: M% i (4) for <condition> to <condition> loop
* @3 U4 k- ?5 B+ H4 n. g& R <statement sequence1>;+ W b' P E$ \+ q" j) R
next;
* s1 U- h9 r% `3 F; Z! M3中断语句
6 m0 d* E9 }# Z+ w* h/ n: S2 G# l4 b( x waituntil <condition> prio <integer expression>; m: ]* T! U p
( G. ^6 L' `1 _4 F+ A+ v, T# [
- T- r) i& E4 B以上为常用的函数！
& Y. t6 z( U! r0 D8 f# n还有很多，如有需要我把资料发到你邮箱里 + w' @& f, C& i9 j0 w: \$ D
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