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发表于 2012-11-13 08:48:12
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1判断语句
/ K+ g5 ~3 w( |8 c* F$ ` if <condition> then
5 j7 h% i& r- v0 q- l, Y4 k <statement sequence1>;$ f# R. D7 N# S$ L& N+ H
elseif <condition> then0 B' U# A4 s& K, L, s
<statement sequence2>;" R% p- ^! y+ q+ z. \* W* j7 Z
else
8 U! K& W! H) P1 z0 B D <statement sequence3>;% M! }' ~: i5 @$ r+ N9 t
end;
* j. F, W+ \1 Z7 A! ] Y如果分支比较多，用：
' O D& ~4 H$ V inspect <expression>
4 d& y( z3 _+ K) k/ u when <constant_list> then
; {. A- n: r2 J5 ^) w; V p0 ]4 N <statement sequence1>;! X2 Z4 C8 Z3 r9 r7 A
when <constant_list> then* ]8 @+ i( L! u6 V5 ]: V9 h7 v& z
<statement sequence2>;) Z5 K5 D& I; x2 b
...
8 ^7 x0 ^* V9 M2 r% \& {( m( m else
- F8 ?8 }# l4 H* j X: C" p* J2 V <statement sequence3>;
# \) \1 E* ^5 s* l$ S, V) p$ ^end;* b" e! {/ o: U+ h/ o& U( `+ i
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2循环语句8 v6 D# j- G4 }* N8 i
(1) from <statement sequence1>8 H; Y) U6 v) z* Z$ {2 {
until <condition> loop+ y: a. _7 Q8 T1 G' X) l& j3 y
<statement sequence2>;& X, B% _7 N# x* w8 K
end;
) B% H3 i- O+ U7 X" e (2) while <condition> loop
6 R. F. T; `2 l/ u! b6 b; _. | <statement sequence1>;
& w" d F, v! e9 ~6 T0 F, P, d6 ? end;& ^) R, u# Z6 p3 V/ p2 B# x: ^
(3) repeat # v$ W- C9 a6 ]6 U9 c
<statement sequence1>;
- C9 O) ?7 o' r9 i0 t% T until <condition>; o2 M+ H. V/ a+ |$ D. e7 J
(4) for <condition> to <condition> loop
7 f( \$ q9 H9 {3 g- e! j <statement sequence1>;. q( y& J6 w2 n. `, J
next;
1 c$ E7 @. }" b% W! C# p: P3中断语句( o R* t; ]' F8 @. y9 x4 u6 w
waituntil <condition> prio <integer expression>;0 T5 |+ O& M. s/ m/ ~
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以上为常用的函数！: ~" X( f7 q3 B! ^8 _
还有很多，如有需要我把资料发到你邮箱里 $ o1 x/ e7 ]) o. l6 q2 j P* w _
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