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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句+ ~' _- O, \! a" k- ]) D ~7 G- o
if <condition> then
* _, E( c+ F1 M3 Y2 U <statement sequence1>;) G7 E; k& J6 b+ }0 I$ Q+ i# U
elseif <condition> then
( r M8 h# T) u' {; G# s <statement sequence2>;
' B6 j* m- Y! L. ^ else 6 F& {9 E& ^0 `$ E
<statement sequence3>;
8 u6 C4 @2 r& }; K& W# y, [0 c end;; t0 j8 O2 Z8 ]7 X
如果分支比较多，用：3 h& J) D# q4 t V2 L: w# j) ~
inspect <expression>3 C: H, F% P; V P" Q
when <constant_list> then
$ J" m! b- a) V5 E& n" w, {$ T <statement sequence1>;- D! z! k ]9 {4 B$ b9 I
when <constant_list> then
k* M: L' t; ~5 q+ P <statement sequence2>;
2 E/ F" B) W- d; E; [ T, @4 ] ...
; Q4 R" P0 R4 a5 G# m6 O else
; W. A: {" {! e) K8 D4 T: F <statement sequence3>;$ O+ I; B8 ~ N; k6 o
end;
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2循环语句* R( \: H |: J1 @6 z
(1) from <statement sequence1>" B) u1 e/ }- |8 \! L
until <condition> loop1 ^ {. r/ k; m$ W* G: K& I. K
<statement sequence2>;9 l. e" D0 [- E5 J
end;* i3 e" y8 S) L' |( Y
(2) while <condition> loop
) t% L# C! @$ B+ O <statement sequence1>;
& M3 j! Y2 X% C6 L3 O. M end;
3 c+ }5 e% m& v' j* l/ ]9 i, q% ]/ m (3) repeat b& \9 w0 ~ I
<statement sequence1>;7 L) K Q8 i3 Y/ h3 D7 ^2 L' J
until <condition>;/ E& v9 g# s! \" f
(4) for <condition> to <condition> loop
; r/ ]- x. |' Q0 |( Z <statement sequence1>;
( |' O* \% X2 W [, N, n9 f. Q+ A next;
* O5 v1 e) ^+ Y- P3中断语句
8 f: ?& S" u3 q1 D8 }. q waituntil <condition> prio <integer expression>;1 `' m- {) S; Z' B; y& Y% ?0 p
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! r6 S6 G4 i$ V' F# J以上为常用的函数！
& M3 x5 i, P. z4 D7 l4 } @还有很多，如有需要我把资料发到你邮箱里
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