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发表于 2012-11-13 08:48:12
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1判断语句. P$ f5 v) ?+ A
if <condition> then
; @3 Q* B3 A- t) q <statement sequence1>;
( M6 q/ f7 r) i. [" N1 u: I( G elseif <condition> then
, Q5 K. D4 c* M) d Y) B; M <statement sequence2>;; d( M7 g9 x: e! O. ?$ s
else
/ P* a" J: m9 z- h$ M1 Q <statement sequence3>;* `5 @5 x% Y) {' O3 ~
end;. y, f8 F9 k. [
如果分支比较多，用：9 |% G) n3 m- c& v- t
inspect <expression>+ [2 I1 j p. G. A9 ]: }9 t
when <constant_list> then
( F5 ?. M- c+ u <statement sequence1>;
. y& |# ` z0 F' z, z3 e( o4 j when <constant_list> then
7 \7 Y. A- U" [4 g) W# U2 X. X; z <statement sequence2>;, P. f4 {4 g. A0 o
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else! ?+ n4 w$ }* J4 ?$ H& ^& v9 _3 q }
<statement sequence3>;9 c) ~8 F7 H% a7 ^$ ~
end;
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1 f8 K; x- I" d) \5 {6 w9 S2循环语句+ e6 I: t) ^' o3 G
(1) from <statement sequence1>0 s: d- W3 K! p8 U! X
until <condition> loop4 B1 F* o6 A1 W- \. {6 |* j
<statement sequence2>;
$ z. m. a; [* h G2 j" ~3 r end;+ j% Y$ P6 r& U( n6 ~
(2) while <condition> loop
6 v9 A% u+ _& s# m <statement sequence1>;" c! o& q1 l2 f
end;8 {' b3 {1 A% x; |) p" \7 H% S S
(3) repeat 3 l4 c2 u8 g% d
<statement sequence1>;
/ K( A* M6 P2 t% x! {1 R until <condition>;
. o+ S' R }" N4 `' E (4) for <condition> to <condition> loop
. ^ Y; k- o) M7 p <statement sequence1>;9 L0 J; O6 n5 E K" b
next;
. V9 y9 u' i6 z n6 D3中断语句
0 ?% d" F* [3 t waituntil <condition> prio <integer expression>;5 F5 c5 \+ B8 \* i
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以上为常用的函数！
7 h/ ~4 W$ t: |) X; G1 W. J ]还有很多，如有需要我把资料发到你邮箱里
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