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发表于 2012-11-13 08:48:12
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1判断语句) s; q% G( I0 j2 X* ~
if <condition> then
7 p7 K4 Q( Z) d6 S3 e <statement sequence1>;
4 I$ {4 y+ Z. s0 J elseif <condition> then: f8 H4 [. S a) i1 Y, _
<statement sequence2>;, u( I4 E4 l3 v( B6 d
else $ N5 h( O6 ^4 M! R# x
<statement sequence3>;
) E, A A: M6 d( S: m. ?) k3 S* _ end;3 C: O9 ]# A# `( A8 m
如果分支比较多，用：
& p* c( O$ R* k: V7 \/ r& q/ M inspect <expression>
% l! R$ r2 M0 R8 q6 p! ~ when <constant_list> then# |0 F1 ]; R+ t" b
<statement sequence1>; {" g/ m2 ^3 u
when <constant_list> then
) M4 k& d; |2 Q, S" S <statement sequence2>;
5 ?+ W. G* J: I8 \5 m: K- ^; @ ...
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<statement sequence3>;% F6 Y6 a/ h; J8 A, t8 r
end;
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2循环语句
4 Q5 y* o& z! i5 q$ T (1) from <statement sequence1>
$ t) c8 }" `! D# n: A. p2 x until <condition> loop
7 t7 d8 J O1 A. ]5 @ <statement sequence2>;6 V. x+ r8 r+ ?0 f6 ^% ?
end;
- u. D6 }% `# w4 G1 ^' p (2) while <condition> loop
& s$ h& A/ t5 u3 s0 F# y <statement sequence1>;. c$ M9 P1 z% ~
end;. P- c' _8 x3 p$ [/ O, L
(3) repeat
2 o: T5 [+ Y: J; ] <statement sequence1>;7 a) k. ]* s# _$ b# j/ M% W
until <condition>;
- _/ H& J) i2 R6 R4 o (4) for <condition> to <condition> loop
1 |" B( C/ q% }0 A! | <statement sequence1>;+ N1 o. v k0 ]9 H% W. \
next;! ~/ ]& N2 j) H' M5 r
3中断语句
, J0 E' n. _; M p- x5 B8 p; y F- p8 a8 Y waituntil <condition> prio <integer expression>;
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( N Q$ g. g2 S9 k以上为常用的函数！
9 w: ~9 I" s: \ i8 x$ r& A还有很多，如有需要我把资料发到你邮箱里 ' a# Z; y# `' v8 x9 p
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