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发表于 2012-11-13 08:48:12
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1判断语句
& d4 q) a# B4 I4 O8 @% K+ f4 l6 p if <condition> then9 w2 m/ T3 |$ D. z/ L0 m- [, h
<statement sequence1>;( w: c/ L ~7 u e
elseif <condition> then/ M# z% E; c6 {# A* J* o' l
<statement sequence2>;3 X$ F* |- E6 Q/ ~+ ~7 T0 }
else ( c+ Y E% P, S' Z
<statement sequence3>;
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如果分支比较多，用：) r# Z: ^4 v3 q: Y- w6 a+ b
inspect <expression>) w5 W& c. K1 x7 ?# R& B& Z
when <constant_list> then
) V. K" R8 r* |. |/ t5 R ]8 s <statement sequence1>;/ C8 ]9 N* I. e/ M. L& Z9 T
when <constant_list> then* ^6 P! t6 o& i! n* ?7 T
<statement sequence2>;
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else0 ]1 `, C6 X- r- d) {. H
<statement sequence3>;( s3 S% u! p8 z( F% T Y+ @
end;
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2循环语句
3 u; Y! q: y7 G5 I1 ]5 `* N/ \ (1) from <statement sequence1>' T% J; {! P& H7 J3 e+ B
until <condition> loop
' q; u" t, G4 j, \! a6 d <statement sequence2>;
2 y( Z' O1 m: _7 z+ w" D end;
1 _7 v9 X# l+ m# e1 T% D. b0 m (2) while <condition> loop
0 J$ }% @3 g- j7 x2 m6 h <statement sequence1>;& X2 |2 b0 Y, N4 M6 o$ {
end;; e/ F" M3 I4 j! N
(3) repeat
/ O$ i& s$ Z( e/ |7 H# m& U <statement sequence1>;
) T% m8 ?4 l" v; H until <condition>;
) `( V) U L4 i& G( i2 w; n (4) for <condition> to <condition> loop
0 X! \5 k3 w( ?& F. P7 N5 v( t <statement sequence1>;
7 }. M8 I% S3 J' A5 {. _ next;
) G6 w6 ]5 g$ J5 F" h3中断语句/ [" t- A! W( C
waituntil <condition> prio <integer expression>;: H0 T/ M! n j# J( O
n( g' k" _7 f/ f0 k2 g
3 p, [4 D; w1 h7 s3 g& K以上为常用的函数！( ~! r! J: K0 `! A
还有很多，如有需要我把资料发到你邮箱里 ; |6 E e) ?9 A5 B3 G; L, d9 t/ `6 v
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