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发表于 2012-11-13 08:48:12
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1判断语句
; r; J! b) Z0 M/ q if <condition> then
) E$ @! @! {+ @ <statement sequence1>;1 p9 Z- N( [) k5 ~9 t8 \
elseif <condition> then2 S$ ^8 d% f* T. w. T8 C
<statement sequence2>;7 w( g/ c0 \7 t) A! p) D
else
3 h7 [* B# i: f! x5 s3 s <statement sequence3>;
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如果分支比较多，用：! X n4 l, k2 @1 ^: V! T5 b
inspect <expression>- {( p+ y; U2 r3 H' F8 [
when <constant_list> then( j; g5 s$ A0 V4 b1 A8 z
<statement sequence1>;
- Z) Z, q- h/ z" W' d, _: C* j1 C# J when <constant_list> then* L% N! W( T s6 h7 h5 \+ ?- L
<statement sequence2>;# c& `- \) g$ \( }
...; F' x5 p" X& d" x
else
7 D+ F% A+ y2 X1 f* W } <statement sequence3>;
: V0 _2 }9 _' Uend;
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0 `1 h& ]- G5 f% o7 a2 I$ ~* ~2循环语句
& d; ~1 r) o- ?7 u7 l (1) from <statement sequence1>1 f! ?6 ], K3 ^) B; H% b `, _
until <condition> loop
) s; b- y+ ]+ A5 M <statement sequence2>;
/ K5 D8 e9 ?6 r9 k end;' ]0 I: n/ U9 l( F
(2) while <condition> loop. O+ ~$ G$ |1 m$ \3 I% \) C( g
<statement sequence1>;+ u3 ^7 e4 X) v" l! Z
end;
' e4 S; x$ [" `9 q1 s- Q% e (3) repeat
1 W! ~3 ^; u8 a% F <statement sequence1>;
; G& N4 z" h* t/ |& Q until <condition>;
, b- j9 q6 D2 [; X (4) for <condition> to <condition> loop
+ j* g3 v# L$ q8 X" M( w0 ] <statement sequence1>;: o. I% r$ J4 x) _
next;/ e- `5 q* ^8 c7 _# N
3中断语句
, \# A8 j# ?2 w- c. g/ R( o waituntil <condition> prio <integer expression>;: }* m% i- q! b u" g. Y
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) Y5 j) G& j* D3 _2 ?" r6 r以上为常用的函数！$ f0 g( O- c0 C+ l: r
还有很多，如有需要我把资料发到你邮箱里 ! }; E. N* C( C# C4 a
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+ U& n7 i# b6 {: q* Q9 v0 X! h
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