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发表于 2012-11-13 08:48:12
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1判断语句
; w* U( ~6 w! j/ v8 o) b8 t3 J+ e if <condition> then9 w- p% s. u) ?0 M' R' F7 ~& w
<statement sequence1>;+ j9 P5 B, B! D
elseif <condition> then1 O n! Y# M3 r
<statement sequence2>;
, z( l6 l3 }# ]) u, {4 N8 ~8 x6 _ else 6 u. g: f3 ~" c3 z) n$ U
<statement sequence3>;) y) Q$ J1 T U& _" `" E% H! h$ X! a
end;
5 X8 S: m# u( I. o/ `如果分支比较多，用：# y, V1 m! g( @1 ?5 z, f- g2 W
inspect <expression>
2 g+ D, t4 r, R" Y when <constant_list> then6 W3 s. o9 d) p9 H% ?
<statement sequence1>;+ {1 s# o$ }4 S& m E: q& s
when <constant_list> then' t, d5 K4 D1 Q( w* W
<statement sequence2>;$ k. S- D) e- T7 R8 ?
...# L0 n4 D% o& I
else4 E6 R8 @, i/ [! P' T, ~2 |% L H
<statement sequence3>;+ |) k$ b+ h9 ^: v4 J, d9 ?
end;) s/ f+ u0 F& z1 z! N% A& w
& f) w4 @* f2 T7 e2循环语句( c; L+ ?. o9 i' Z
(1) from <statement sequence1>$ Y: g! v* c/ r& r! r2 h
until <condition> loop
/ d# F) X' S7 E# C+ V <statement sequence2>;
2 K7 o" B6 v. ~, r4 c1 ]( Y: L0 G end;
! i* R, K, @; y ~; Q5 w9 ?0 ? (2) while <condition> loop
e8 U, d5 i& L; W6 a% X$ @ <statement sequence1>;
- S$ C& n2 e; p- f5 \1 o end;: V2 l7 k& A5 b" E9 [3 G
(3) repeat
+ t, y+ X+ E" l" J2 G L' d% W% W* T <statement sequence1>;4 T4 [% P) U! a$ P
until <condition>; p- L2 a) K( J' W7 _" `
(4) for <condition> to <condition> loop
+ X# ]9 |" C) N. ~8 E <statement sequence1>;$ {4 ~! ?& s/ f6 C) n7 }) \
next;
3 b) D% h4 A, p O8 M5 T3中断语句 l" m' r+ K$ Y! z
waituntil <condition> prio <integer expression>;
) w, p) S6 ?" q# a, R: O& U+ i% r2 k/ ]7 \" E( h
0 D6 i" {" S0 }; H
以上为常用的函数！
- \% Z% v4 Z) h y) o还有很多，如有需要我把资料发到你邮箱里
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* \, n. w8 i9 Z) [ - |: A K2 F9 z! `8 Q" i
# k2 Z: M5 {3 e! ~' Z
& V0 z# w0 t3 K8 o c& }$ K; W3 \ T4 H, @9 K. g
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