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发表于 2012-11-13 08:48:12
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1判断语句
9 v) ?) I& @) d8 l( N, K7 j if <condition> then
# S. y9 Q. P8 _% d& e$ C |' F3 S <statement sequence1>;
6 _# N* x4 ~* M1 m elseif <condition> then
4 ]# O% w a$ M2 d( ?% g. s <statement sequence2>;& _5 p' I) j* r, r) m7 F5 x
else
/ l: z- f8 w; s) N; B) n: K( e s <statement sequence3>;
4 _6 X- o+ h0 Z; g1 o end;. K. q+ D( D3 D P, L" n
如果分支比较多，用：
; {# c9 ^: C+ [& W- _9 q1 B9 o6 p inspect <expression>
" [8 }% W9 x1 E- B when <constant_list> then
. Q% B$ w$ a5 C' x <statement sequence1>;
9 D: \) R- q1 ^7 t5 V" Y when <constant_list> then
m% Q! F! D% X9 p: @ <statement sequence2>;( l& R1 @3 E6 T" x
...8 Z9 M/ z& t4 i! V8 T, E
else
/ q- S; h- g3 a; X$ W# b <statement sequence3>;3 Q5 v9 x2 Q* F9 H9 a
end;
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2循环语句
5 m& _8 b' G+ I. G' E5 w (1) from <statement sequence1>" Q+ R$ T( D. @
until <condition> loop
, S5 r1 b- h, F3 c# l8 r8 V <statement sequence2>;
/ q: Y* q4 n ?, P3 ^1 h8 H end;
# A1 |- Q+ G6 S v5 d. b" r (2) while <condition> loop
# t4 l5 C+ _& Z; K u/ z <statement sequence1>;
3 l0 V! h' Y) k$ r end;
# g' U( H) u; F, e; Y/ j (3) repeat
; E7 Y8 g: R* i$ g9 _ <statement sequence1>;/ ]% J# w+ v) j, H2 B
until <condition>;7 o, u" q+ R* r) Z) j* k$ x' W" }
(4) for <condition> to <condition> loop
8 u" m3 n/ ]# L <statement sequence1>;; q' c" |+ w. G- Y3 I) `. W2 C% [0 P
next;2 \- e' w& `: q
3中断语句$ C/ }& K6 u6 P k# C$ f2 L: A
waituntil <condition> prio <integer expression>;8 ^' [ @8 L0 F$ v* G: ]! k
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以上为常用的函数！
2 J" z. E6 i+ T I还有很多，如有需要我把资料发到你邮箱里
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