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发表于 2012-11-13 08:48:12
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1判断语句9 Q) C1 G" o5 J; @- m
if <condition> then
: |- b% D5 {1 ]! ^5 c7 z! h <statement sequence1>;
' F1 I6 d( P! ` elseif <condition> then D! [& t8 W2 f. O
<statement sequence2>;
f5 o; J' x& G4 y, Y3 ? else
& M' M" }2 t; i* q7 o <statement sequence3>;
* t8 I/ \& U- L) c end;+ a. p# e5 Q2 x3 D0 [
如果分支比较多，用：
1 \ R: n% l6 n inspect <expression>3 }0 u( i* Y& a
when <constant_list> then" P5 s! X- O+ Q. A, q
<statement sequence1>;
3 t u- g" c: K! h2 G c1 \ when <constant_list> then
7 Y3 I' W+ ^0 L$ E8 L5 S. R* K5 Y <statement sequence2>;
$ a' `. R b1 c7 J) z ...
9 ]. x/ J/ r# _( |3 e else }8 t- Q4 Y: ~- C$ W3 w
<statement sequence3>;
/ z- X: h6 M& A: Aend;
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2循环语句
; G+ G. x5 U1 t (1) from <statement sequence1>, u4 `) L9 K% G& V
until <condition> loop
4 k# P! l# H! S y <statement sequence2>;% e w& s* e( }; |# q) x
end;5 e8 q: k2 f6 s* o' ?% L1 ^
(2) while <condition> loop
3 n9 s# D z$ a) |/ P2 x% h <statement sequence1>;
2 a6 J% W3 Q0 [! a) I; ]9 t end;: t* l, T/ ~- d1 G% s7 }4 ~! c$ {
(3) repeat
6 _5 t% ?1 h1 I6 g6 C! P6 f" k <statement sequence1>;4 U4 d: s. P, T- c
until <condition>;
( ^, [4 V3 W8 \1 g (4) for <condition> to <condition> loop+ l! ]; p' a- f
<statement sequence1>;" s1 m9 k" Z; h5 d' w
next;
. E$ m" f/ p: {3 Y2 [. C3中断语句
+ h/ d `& B3 X6 R5 K" x9 h waituntil <condition> prio <integer expression>;/ w6 S6 i$ B$ ?% }
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3 w8 q3 F, y1 j) S* D以上为常用的函数！5 D, F/ Y$ Y/ C9 I2 i3 @9 U
还有很多，如有需要我把资料发到你邮箱里 - @+ B! _- _9 v7 g; ~$ L
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