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发表于 2012-11-13 08:48:12
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1判断语句! ]8 ]+ Q: e' U' y! J- v& o4 b+ M
if <condition> then# }# u. j0 ?0 g; Q: q1 Q
<statement sequence1>;3 `; l0 ~" T5 q f- N C w
elseif <condition> then
# m+ S9 F7 M ]" h2 \ <statement sequence2>;
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<statement sequence3>;. C6 O1 Q) u0 H* _ P; R2 b
end;. w/ a: b6 @: z! r4 c$ h5 j
如果分支比较多，用：$ k: d9 k+ R. s9 S! g
inspect <expression>& N$ P% }2 u: D
when <constant_list> then7 |5 `/ o( ~: E+ W; |6 ~
<statement sequence1>;3 Y% L. S6 X _( r x! O& B
when <constant_list> then4 j% R8 G8 W$ m* M$ A
<statement sequence2>;
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. O6 n9 S4 g5 j$ k% R' ]8 } <statement sequence3>;3 B5 |6 V7 k7 y8 A
end;
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2循环语句2 f% y* J4 ], w2 G9 U
(1) from <statement sequence1>, N6 i1 m* \* v8 y; S
until <condition> loop
$ u- u' T& I2 ~. }: s! } <statement sequence2>;
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4 `9 p, D, }* a/ k1 M2 M N (2) while <condition> loop
X8 H$ I3 _. {( T0 h a <statement sequence1>;2 L I2 j0 p+ P! V
end;& B* ^1 `) L" Q8 g
(3) repeat [. v7 B* m- d+ q) V
<statement sequence1>;
5 q; a8 \+ f( I; g6 O until <condition>;% A0 Q( v. f; B; O$ C8 p1 j
(4) for <condition> to <condition> loop
0 t1 {" C6 Y! k0 T! | <statement sequence1>;# q+ C8 h3 l8 Z$ H
next;
% U+ F3 @0 Z9 _3 U- l3中断语句. _% X9 J6 z5 b
waituntil <condition> prio <integer expression>;
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以上为常用的函数！' w) T. C% x% V* {, |& v! B
还有很多，如有需要我把资料发到你邮箱里
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