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发表于 2012-11-13 08:48:12
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1判断语句 ^) V+ U' q( |& g; J: C
if <condition> then
/ H+ C* |: o r/ R$ @+ f4 c. t" O$ E- | <statement sequence1>;
; m4 ^* h$ F- q$ W# m elseif <condition> then
' Z* [$ a9 o1 ], ]' X* {/ P <statement sequence2>;5 N5 @ q+ ^/ F/ L
else
9 {* g. r- g2 ]( W$ ?: Z2 @ <statement sequence3>;2 O7 E! H: F9 \& Y% Q+ m) C
end;
9 X C7 A4 K* K% q# o8 b如果分支比较多，用：
0 b( f! C# Z) }: o inspect <expression>
( P: Y- Q; ~0 C# T* F when <constant_list> then6 `8 b, M, L3 L; A9 A& ^ P
<statement sequence1>;8 V! d/ T: r1 c$ b2 ?$ X
when <constant_list> then, h: z) S) ?* L+ C' t4 I+ J! k
<statement sequence2>;
+ W6 y, U8 j, R* o8 B& Z( p ...
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<statement sequence3>;& }0 y+ p7 v& y) N4 z
end;8 k# w3 k* }$ j) E4 O$ Z) ]
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2循环语句& O# H8 l1 N" N) Z1 K, R+ S! @4 D
(1) from <statement sequence1>
9 f3 c" L; i1 ?/ `/ v until <condition> loop' C8 ?, A$ D$ a& d
<statement sequence2>;3 V/ w" D+ \& z J
end;
8 _! G& G8 Y/ c: `$ x (2) while <condition> loop
) i0 `- G# W# |7 @3 p <statement sequence1>;
' |; t% f2 h% f7 H( E4 {& z7 Y& J end;
2 v7 J8 f9 s# `8 f7 P6 b* } (3) repeat
8 A; H7 S& T& @) b5 k <statement sequence1>;' K. a ]" e8 \+ X7 \: {
until <condition>;( D" `8 [% P& ^
(4) for <condition> to <condition> loop
7 F9 s6 ~8 m6 T3 t <statement sequence1>;2 \/ p e6 ?; E$ A
next;0 F" J9 M: E4 f- A S8 F. H; m, r/ d
3中断语句
, c/ x0 ^; s$ n! P1 q$ Z/ z waituntil <condition> prio <integer expression>;7 b, v( C' I- F0 C2 n
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0 H5 {, j$ P$ {; `: Y5 v' }. F以上为常用的函数！2 n( z9 d6 B( U: o# N( [) ~
还有很多，如有需要我把资料发到你邮箱里 ; I) K0 ?# s/ z" J$ w% D
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