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发表于 2012-11-13 08:48:12
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1判断语句9 }8 J' O# J- r8 b! H
if <condition> then u" J1 p0 {5 D! l
<statement sequence1>;5 l& ^+ h9 K4 m) q" j
elseif <condition> then1 b q$ O4 u7 W" P3 g! H
<statement sequence2>;! i% p* s9 u- k9 ?! V! I+ |
else 3 `% m: C! v3 ~
<statement sequence3>;
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如果分支比较多，用：* W1 V3 w4 S9 b* I# @
inspect <expression>
" s+ p9 T! l+ t3 i when <constant_list> then4 s: b" t4 Y+ t- W6 W9 X
<statement sequence1>;
3 ?9 | _" g) b s" N! t# B- Z when <constant_list> then
4 w9 U# j7 d6 O0 I <statement sequence2>;
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else
& `+ f5 v; r9 s# A+ O% w+ T4 v8 B <statement sequence3>;
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2循环语句' A0 e( V) U' \" ^" \9 O+ k" f* S$ ~
(1) from <statement sequence1>) k& ?1 l I( R9 w1 L" t/ Q
until <condition> loop
- }/ U* b+ U& _$ A$ ^% ~+ W: o- z <statement sequence2>;/ t1 t* Y4 n3 Q8 v/ c
end;
9 u6 f- {7 D9 v! N; g (2) while <condition> loop
, }. b w: k8 [( i+ z2 U% I7 k <statement sequence1>;) o( w3 n4 ^- l3 ~: q/ t
end;) z$ K: I. G( k, k6 t
(3) repeat
J5 Z' e; b3 o1 F2 @" W0 u <statement sequence1>;0 z8 X/ U" _1 X) [
until <condition>; P+ m! }5 y' W' y- E' \# K- `
(4) for <condition> to <condition> loop
6 J% g# w& O. k9 V <statement sequence1>;& Y5 W$ E7 P) X* k k
next;) l; }- n& r0 h1 _9 d
3中断语句; M: B: m. o# ^
waituntil <condition> prio <integer expression>;9 l5 b2 u5 Q7 E h8 \3 q
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以上为常用的函数！
& c+ g) ]$ l2 ?" A) R3 `9 Q7 q还有很多，如有需要我把资料发到你邮箱里
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