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发表于 2012-11-13 08:48:12
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1判断语句
& g2 e) K) {- A/ C0 R4 i if <condition> then q- b8 _/ w# H* d' v, ?; L
<statement sequence1>;$ c0 J- s) W! O; n. s
elseif <condition> then; Q4 m" w8 j6 M' J" b" Y- ?
<statement sequence2>;! s- } f2 G* P/ h4 m
else 3 ]; \: L6 | `) [7 V% }/ x
<statement sequence3>;
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如果分支比较多，用：
+ m: }; ]# R& E( l inspect <expression>
; C# e2 V9 g( h. k- ^: O; M) r when <constant_list> then, X* _3 t' T0 v) m+ A
<statement sequence1>;7 T5 `- v* i, J4 ~! F) A
when <constant_list> then+ i$ @; o7 g, J2 m. T2 Z
<statement sequence2>;
7 v6 n/ P( h6 d ...
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<statement sequence3>;
: ?5 {+ m% J: k) K$ v" B/ }end;
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0 ~- S% i2 F7 Y5 W4 e2循环语句
- d6 i/ N' T1 f0 W6 Z& h, b (1) from <statement sequence1>6 Y" K5 \9 d2 O$ b, F" t7 X1 A
until <condition> loop
) ]0 D% ]8 I% [: s% g <statement sequence2>;' K: }3 [1 f* r$ U
end;
& ?8 w6 p$ G% g8 C# j (2) while <condition> loop
3 _% J! p/ H& L, O8 B0 G& M. ~ <statement sequence1>;$ a7 ^- c7 d. H6 U3 d
end;: R, P$ J: D% E$ _9 S' D& s
(3) repeat 9 X8 ]1 B9 E! m9 V& S
<statement sequence1>;9 z6 C1 @* ^# Y" w( q' D, b2 G
until <condition>;
+ {8 l. V M8 m4 i) _2 a) D+ a( } (4) for <condition> to <condition> loop
# L" }3 j9 M& v: C( j) n3 G <statement sequence1>;/ A* a, R+ |" V
next;9 I; I! W; ?) z" j7 e
3中断语句
" O, R& V3 l! o6 J waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 i( V7 L$ X$ h7 ~% ^' `% b
还有很多，如有需要我把资料发到你邮箱里
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