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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
0 b" o$ w& |1 D3 {$ i( ^ if <condition> then: N+ n0 K! S2 A" ~, {1 `% d$ {9 ]
<statement sequence1>;
3 X) ?+ T" [, y* p% q1 b( t elseif <condition> then
/ O$ j N# V4 q/ |" D$ `' R <statement sequence2>;
* D" m. J. d8 C1 M else ! J5 X- n" R1 @
<statement sequence3>;
. p |! Y: W5 l& N; a. y1 F end;& @8 h- z- m3 @( \4 {1 G/ ?
如果分支比较多，用：; g4 _3 A; V5 ^. \/ V1 K5 y. t
inspect <expression>
: {6 n3 C& J8 I8 [% ] when <constant_list> then9 t' ]* _: J, O& y3 t
<statement sequence1>;
8 T( V/ l3 n9 A$ J; z6 t4 K2 T6 n when <constant_list> then
3 L) N n0 i) A2 M0 L& P$ n <statement sequence2>;
0 Q1 ?. U: }9 B9 ] ...
3 y u( S! c* O; R1 a" W else
* M; {# f1 U8 w. p <statement sequence3>;
' K4 B% }5 U/ M8 Q3 t0 S/ f* u1 z0 `end;* u6 \6 l; x/ ?7 \ z, B+ w6 O
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2循环语句
9 G4 j' t h7 x# Z% s% U j (1) from <statement sequence1>
+ _ Q# r- V, [ y3 X: V* N until <condition> loop# B6 G: G7 `7 j2 t/ T. v2 ?
<statement sequence2>;& L! P1 q) Z* l
end;
0 I" ]* g2 J j" P7 N" n8 v9 a (2) while <condition> loop
' W2 ]8 @6 Y9 P7 j: k <statement sequence1>;
1 ^1 Z3 Q- b9 d0 R- u7 @6 A end;
1 K6 E# P. \& y$ X3 ~% u. H8 O (3) repeat 0 S' d7 `& W0 o2 `+ }
<statement sequence1>;/ C5 g/ Z1 T" [
until <condition>;7 a1 S: ` b2 _! b
(4) for <condition> to <condition> loop7 m- T7 B: S3 U
<statement sequence1>;
6 o& o9 e6 Q2 m; ]* S" \7 ^1 c next;
5 V4 q; _+ u+ v2 o3中断语句
' m7 X6 k, y/ J8 C0 |, V! _ waituntil <condition> prio <integer expression>;
: e2 A4 N9 s2 i; }% ~, @4 s' `) w+ c1 Z) D& x5 K* h* ]
& x3 o3 m8 m! V# ?( B9 f以上为常用的函数！* T: j5 Y& z9 [: ?+ t+ w+ c6 i
还有很多，如有需要我把资料发到你邮箱里
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