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发表于 2012-11-13 08:48:12
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1判断语句
7 [# z. `- g8 b( M if <condition> then" X3 n( b' v& t- g/ g% |
<statement sequence1>;3 n: ^( ^. I$ |. X: D% ^, U6 q% @
elseif <condition> then
$ x! k+ Q1 I" k8 b! f <statement sequence2>;
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<statement sequence3>;
) M$ z8 }0 q x end;
& J- B- g3 R7 @如果分支比较多，用：& ~1 R: I! ^) |0 ]1 q) G: b7 t
inspect <expression>
$ D) M# \) N$ `0 y/ X4 y when <constant_list> then
: _8 x1 K; ]' _# d l+ \ <statement sequence1>;
5 c4 ^8 c1 [& @- }+ c* O when <constant_list> then$ p" W: c; ]; G! C
<statement sequence2>;
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else
. t1 [" Q- E, J1 m# d4 z <statement sequence3>;- z2 D+ Q8 E! f
end;; f' ]" K5 d+ e0 Z
5 \7 @, ?2 @+ o( y0 C2循环语句
7 A- T2 y7 Q# _, [; p& Y% @ (1) from <statement sequence1>
7 U- @5 c6 q. U O ~ until <condition> loop
% q; S6 `- }4 m+ M. M. N2 B3 U9 |3 K <statement sequence2>;7 a# V7 V3 Q4 [2 {% c
end;
+ a/ [+ V, ~1 H7 l* ]7 Q (2) while <condition> loop, d: j0 ]% r6 Y$ D! R* |- e9 a
<statement sequence1>;, `- Y* n' O- O) [9 Z
end;
7 b& I, p" b+ Y+ a: S3 G$ ?6 ?- {8 _: w4 Y (3) repeat - G7 J8 A1 |& w, U
<statement sequence1>;: u1 s9 f' H, [+ W% G3 W
until <condition>;4 }% v' p& W$ {$ k! K9 ~
(4) for <condition> to <condition> loop( K5 W# _% ~3 r- G9 G
<statement sequence1>;
" d+ b' [ f! D next;
# G3 B( n1 n: Z8 r2 J3中断语句( O) Z+ ]4 _7 U. H9 I/ W
waituntil <condition> prio <integer expression>;$ i9 O0 N0 {( Q# H+ E4 J/ c
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以上为常用的函数！" E* l; y* [7 L( M6 Z* E
还有很多，如有需要我把资料发到你邮箱里 ; u7 K3 j' H" V
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