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发表于 2012-11-13 08:48:12
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1判断语句3 H4 s! P: u5 S+ T3 G, \
if <condition> then4 e r' N' s$ X) B
<statement sequence1>;5 F: m# o0 ^+ D3 r
elseif <condition> then
1 k( z7 {; I4 Y9 V" r- ~# _2 P- a <statement sequence2>;
! E& j- |* {! ~7 Y6 p1 v( U else
; R: [. l+ ~4 X' b/ K <statement sequence3>;4 e' C$ D$ T3 C3 p1 ?
end;, z, a6 @. H3 e# B, ^3 s/ y1 I) j/ X
如果分支比较多，用：
2 i+ l; j3 n; _; G6 S' X inspect <expression>
. }7 d' O# v2 \7 _5 r2 d when <constant_list> then
6 o0 s6 U' E0 _4 X/ E2 | i <statement sequence1>;
- E$ Y$ c( E; z% B, z8 y when <constant_list> then' ?0 S3 @' j9 G$ S$ w2 D
<statement sequence2>;: K& g% E8 y, x$ |* ^; G/ _
...
7 V2 k$ }9 V( \# a5 @ else
4 J! P [1 l2 Y8 e$ J <statement sequence3>;
8 P( y4 z1 H" ?) f' V5 _end;3 x0 J, f L1 p$ W5 e. D
! c, e$ J( X+ `) q; Q( |7 s2循环语句
6 i0 y- e+ @6 k) ~ { ~ (1) from <statement sequence1>
# K$ B- _9 H# n; |: H- [+ O until <condition> loop/ }% D9 U3 o5 b* R K
<statement sequence2>;, r- r9 X" l0 e A& r, ^9 n
end;
; R4 [2 l+ Z! m t6 [ X* _ (2) while <condition> loop
8 q% U$ P2 K$ x3 H5 T6 d* e* p; ~, f <statement sequence1>;
( I! K" l0 ]0 c+ p' {) o! j" _ end;
/ O4 {2 a; N/ Y( s* o (3) repeat % _4 U/ W0 f( O; j. G4 g1 A8 u6 W
<statement sequence1>;9 r2 c6 K, i; }( C
until <condition>;/ `" j- t" I( K" i" `
(4) for <condition> to <condition> loop5 ]# t. _! O' G. k
<statement sequence1>;
, Y( g! q/ Z1 o8 |6 M) z7 _: z) t next;3 V! A9 I$ b. B. Z; o6 R
3中断语句
3 R v6 L0 ]7 Y' ?7 n/ O9 [ waituntil <condition> prio <integer expression>;
4 X2 P; ^8 d( ~, u
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7 }% J0 m, R. h5 B; ]5 O& U以上为常用的函数！, I$ r1 \/ O5 M6 V- Y5 Z
还有很多，如有需要我把资料发到你邮箱里
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