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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
0 {) C- _+ p2 c* z9 _ if <condition> then- p+ Q6 L( C. w; g
<statement sequence1>;
1 `3 _% h7 v9 ^, y" _7 n4 S4 L elseif <condition> then
) v2 {) R6 h7 j6 y( V0 E' T <statement sequence2>;. ]; s" a& r3 s- S
else
) M; `0 ]- s3 t; Z5 {7 B4 r! f/ c0 w <statement sequence3>;6 g% g" w) m4 j; @; U! }
end;
+ j2 S) Q# c% u如果分支比较多，用：8 w$ w( C3 v) ~' }
inspect <expression>
! c3 w. P4 P! r7 E6 F9 y9 Q when <constant_list> then9 \; ]* e5 w3 X, w7 {* T8 @
<statement sequence1>;# |$ w7 H S( ^3 [: B& { d/ Q
when <constant_list> then. x3 ~# f0 Z. [1 {7 Y+ m: Y# H
<statement sequence2>;/ f8 s6 p1 t" T: \2 G& t: v
...
" [2 I2 i1 _2 Q( O1 L/ [5 Q6 J else
5 J$ l2 Z2 v" Q9 \$ V$ J2 V <statement sequence3>;! V G+ j9 E+ K+ b3 @. I A
end;. {5 s5 d U+ y% _
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2循环语句
# v6 F' |4 {2 B' J9 I3 t0 B& s4 n% @5 Q (1) from <statement sequence1>
' \' f# v& Q: z* C1 L7 j until <condition> loop9 v4 A C% \) Y: U) d
<statement sequence2>;
q# J! P9 c- _8 O/ L end;
0 v6 }2 @' T' [ (2) while <condition> loop: P; Z% F9 ?3 h1 l* F
<statement sequence1>;
& ^( w/ @' l; X$ g& {# m6 }9 Z end;
9 c+ z/ C$ l" M5 _8 M (3) repeat
( g0 `4 g, L, K$ a+ z* m <statement sequence1>;8 a" p% E4 x3 ` j* N% O3 \
until <condition>;& x1 d7 Y5 x, ^0 |7 z$ |* e2 z
(4) for <condition> to <condition> loop r/ [/ t2 u0 R& T+ K
<statement sequence1>;
8 V' E6 z# A, F$ r) M4 i next;% H: y& z% E; P5 s% t: }
3中断语句
' Z2 o; S! K; g9 V+ o0 ^0 r waituntil <condition> prio <integer expression>;
( d2 T/ U" l! s, K7 F+ x# K9 J6 x* g) `3 l/ [
- Y( z" C6 \" ?: B( y/ ~以上为常用的函数！
! W6 X/ K1 h. }7 Z! E1 ^0 j还有很多，如有需要我把资料发到你邮箱里
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