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发表于 2012-11-13 08:48:12
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1判断语句+ K# G6 W" u" f# [6 K4 V" a
if <condition> then- A. V0 G4 Q& W8 s: K) d
<statement sequence1>;
~ p3 {, c9 ? elseif <condition> then: ~, M; c0 L2 t- b7 ]+ V3 {
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：' W& K6 n1 F) j$ Y# C- M5 R( ` a
inspect <expression>
, `- B0 z: X. X7 M when <constant_list> then
4 e m0 j* m2 G9 q" A. x* l <statement sequence1>;6 N, ?$ b( K- }( ?% j# ]( l
when <constant_list> then
: Q0 l {! S. O. C <statement sequence2>;% F, }) B: }1 F! U5 {: w3 d; Z2 Y
...
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<statement sequence3>;' k$ w4 h9 F& Z: _8 I
end;
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! q9 M$ S3 j& \: |, z9 O2循环语句* M, r4 P$ Z' x+ G
(1) from <statement sequence1>! ], L: C ~) j4 }
until <condition> loop
4 L5 {5 N, v3 f3 w. I <statement sequence2>;
$ X p8 `6 S/ d2 t" B; v8 D end;
% t+ a; N# K2 U$ o* G1 g (2) while <condition> loop
( p/ C" j8 v/ t8 i3 s4 f6 d <statement sequence1>;- A4 Q4 ?$ j( e% J/ y
end;0 Y' |# C2 t# a# m
(3) repeat % }7 G7 z! R9 M( i# g* k
<statement sequence1>;- [. G1 I+ J. s) P0 ]' N
until <condition>;& t m% Q$ s) ^. ?
(4) for <condition> to <condition> loop8 B- Z1 i E [6 w
<statement sequence1>;
q7 y9 X" r: W* W next;
0 P$ W$ s; [5 [" o3中断语句
8 N% I/ B) ?1 V' ~, z! I# F waituntil <condition> prio <integer expression>;
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4 B$ A' P' e6 p+ \" R以上为常用的函数！: M2 ?, |3 \6 x% J( k* \# R
还有很多，如有需要我把资料发到你邮箱里
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