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发表于 2012-11-13 08:48:12
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1判断语句; [3 U( V! s1 j# ?
if <condition> then
0 J+ J; H; ?1 X$ ~$ | <statement sequence1>;% E) d6 V" n8 E) _: v+ F
elseif <condition> then7 l6 m( }* u" S, Q1 F
<statement sequence2>;
! C6 z/ j: `0 n else
3 r% m( S, p# L <statement sequence3>;
+ g! r) w5 [! E! ?0 {/ X6 w4 Z$ t end;, k+ f1 V% H- N5 Q1 N3 m4 ]* f
如果分支比较多，用：
( i( H* p- A! N inspect <expression>6 m- t1 c9 m2 `/ X
when <constant_list> then8 J! w% r2 p% W, ]' q
<statement sequence1>;
6 d7 }/ L# Y+ o* X' B when <constant_list> then
; F% g$ W8 ^) c' X+ C3 r <statement sequence2>;( H: A/ T4 E8 J* r- x' B
...
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<statement sequence3>;
6 z! Y3 c# Y8 f* O/ a' l B3 mend;/ g0 o: n& W+ t& Z
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2循环语句+ d" @! W( x' ~
(1) from <statement sequence1>
2 Z* e+ z# W$ J& W until <condition> loop
2 _$ n0 f* R5 g0 n- l. l <statement sequence2>;
( Y5 \' B. e4 O: y/ ^ end;7 g' b# r6 v7 a- G% l1 r
(2) while <condition> loop: C; P" O4 D1 \
<statement sequence1>;6 `8 y0 L# T' s2 u- [
end;
, w5 ?* ~; ~! W# v' | (3) repeat
) P1 x3 d- B8 ^4 F, m3 \. L <statement sequence1>;2 u: P6 R7 g4 Y, @- k3 u0 h
until <condition>;7 ^6 S( {* H0 F% H
(4) for <condition> to <condition> loop5 M( Z) R# u; Y+ B
<statement sequence1>;* T9 r P6 L' F9 V
next;" }) C' g1 ^1 v R9 i
3中断语句
8 u+ c) c1 m2 f waituntil <condition> prio <integer expression>;5 A8 r5 o x5 z
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/ Q6 G! B* Y9 o# n( s以上为常用的函数！
$ J" d+ U) ^* V+ ~. S( `& e还有很多，如有需要我把资料发到你邮箱里 7 E: h, r A! D: ?
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