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发表于 2012-11-13 08:48:12
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1判断语句
) C: q1 S$ Y7 i, E& S4 t3 { if <condition> then( l3 Z0 U3 ]3 V
<statement sequence1>;
2 p, l- {/ J6 t" D, q; x) _7 t elseif <condition> then
- V4 h, k5 D% ?- q5 R! @' f <statement sequence2>;2 g: a; t& m) a3 ?
else / i" v$ H2 D/ m2 a# b5 o6 R! m
<statement sequence3>;
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如果分支比较多，用：0 r" ~6 d! X5 A% Q# B
inspect <expression>8 M) E# T( E. P2 q8 d* Q8 m- j2 X5 M
when <constant_list> then1 N W. g/ |* Z, D {4 I
<statement sequence1>;$ c; h) Z" s) d/ ~# B8 a$ K
when <constant_list> then8 b, {8 v+ H4 M5 p# P& Z0 J4 q
<statement sequence2>;' |3 h- H) Y& Y+ h) A7 ~ b
...2 n7 \8 w& f4 H6 y& g+ s1 F1 R+ W
else
( T+ j0 ]3 {8 v, r6 \, C <statement sequence3>;
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! z+ W# g1 k6 C3 q8 J2循环语句
# V- _4 a! |) z& k5 g+ W( i (1) from <statement sequence1>6 V* r3 N( R$ L" l( G, _
until <condition> loop R% A; Z0 }1 n( p
<statement sequence2>;# A0 c, l( P9 m7 u3 V* H) o
end;5 I2 c: X' f- k' N( ?7 w3 ]
(2) while <condition> loop
) V+ } m/ D% G1 K; g9 o <statement sequence1>;/ @% c0 B" N. ^: ?& H
end;
) | u7 K x; x/ z3 C6 g3 G4 @ (3) repeat
) T/ H& E) A; h R+ G) B) V. W" C <statement sequence1>;- M" ?, k8 p5 @/ g D# b
until <condition>;, ^9 x% _1 g% `# ]+ t1 X& G
(4) for <condition> to <condition> loop
! F8 D$ p/ X C' G- G <statement sequence1>;. j) W2 A5 S: D7 V, t a
next;1 H9 f5 q, K M6 Y' [2 w; Z7 D. M
3中断语句
/ q" s! ]1 ]) D- w waituntil <condition> prio <integer expression>;
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! W/ ]6 O1 U5 u- q# [
7 O4 q' T& E9 @) J( V以上为常用的函数！
' q4 @1 m7 z/ f# |2 z& ?还有很多，如有需要我把资料发到你邮箱里
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7 _+ f% P' y3 y+ i& a
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