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发表于 2012-11-13 08:48:12
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1判断语句
# a' g& E! T/ b# u7 p4 `# j if <condition> then' U' X9 P5 M# L
<statement sequence1>;+ F) ]5 i6 ]7 m$ H+ @* x% v p/ Q: G4 d
elseif <condition> then/ h- I! y. @: H) G/ ^9 z& y9 `$ \. V
<statement sequence2>;- U, D& l. @* g
else ! C. E& `# e9 Y6 h1 ~( m
<statement sequence3>;8 j$ e9 c; P3 s& _& L% F' w
end;8 ?4 r( q9 J5 d, _
如果分支比较多，用：) X4 B: B* A; c1 E+ |3 `
inspect <expression> Z) r3 r" Q/ }) J% i
when <constant_list> then
& k! F3 F/ z* H. J* U! N <statement sequence1>;' ]6 s3 N0 V! M* [ B
when <constant_list> then
( h6 @3 `8 `2 E2 u3 W# e2 F <statement sequence2>;1 g0 f, n) [% R5 x& j- u! S
...8 B9 }3 `4 N/ C/ r$ ^
else! ?4 G; f! j+ Q# l
<statement sequence3>;
# E% p% X4 t1 R6 z+ H' n6 B) Uend;9 D+ N4 [2 o& V. }: F: J
X$ J9 e; g% i' y% R2循环语句
; w7 P1 [/ [" h3 s5 }6 n (1) from <statement sequence1>/ _4 h# h7 t" @
until <condition> loop* W' L% l, q. y2 B% K0 G! {6 a M
<statement sequence2>;
U0 T9 R9 Q x. k6 D. n+ O3 `$ v end;: p3 i" Q7 f$ i. \& t) I( C5 D4 U
(2) while <condition> loop
" E' M5 r$ H+ w$ z$ D5 L <statement sequence1>;0 k' Y7 M: e" ?4 E# Y: b, g
end;
7 q" X) y; L/ ~/ G9 t8 Y: L) M (3) repeat
, | P9 a* x- I+ k3 W% \ <statement sequence1>;
. _7 E( c) H) Z6 ^& _" E until <condition>;
& J# h3 |' O Z& B4 s6 m: i$ k (4) for <condition> to <condition> loop# T* @0 ~* B$ [* ^7 }# r
<statement sequence1>;, n5 S& ~3 a: L6 m, v. x% Q
next;
1 H0 l) ?4 w$ t0 o- n4 [3中断语句
* q: P& o! q" h, ^) n8 K waituntil <condition> prio <integer expression>;
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) w, ?4 h8 V7 }, }/ P6 p3 J9 g以上为常用的函数！
' n$ L) a! x1 \" N& K8 w- q还有很多，如有需要我把资料发到你邮箱里 8 G9 H# G: b9 c5 ^- P) c6 c
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