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发表于 2012-11-13 08:48:12
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1判断语句
) g# u6 \' P/ l# } if <condition> then
4 S3 a/ q# r5 C( p* Y& I <statement sequence1>;
2 e1 c& A. V2 W3 y; L ?! h# L elseif <condition> then& O6 `7 i, c+ l1 l, \% {3 Y
<statement sequence2>;
% z& {. Z5 h5 z- p& b" ?/ K else
+ O0 H. R" A. K% e9 y. R <statement sequence3>;7 O$ L5 ]( K% K) C
end;- b+ a0 c& ~! `: B5 O3 v. |# w7 J
如果分支比较多，用：4 [" z! I/ N+ R6 ?8 Z: U9 b! f2 C; C
inspect <expression>
- `9 A, x+ O' w/ f when <constant_list> then
8 l& B. x8 ^! I R <statement sequence1>;+ b3 {$ D* ~2 O# ^9 \
when <constant_list> then) y7 |# \' n7 p9 ^! V- H
<statement sequence2>;
+ j+ a5 Z" w' }0 Z0 y# D" s* ^# p, T ...
b: r" K8 T1 S8 j5 q+ _( \# t& { else: W: k! ?% h+ T0 ]+ x6 \- A
<statement sequence3>;
o0 N/ w# e/ o( uend;
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7 Q: l' @* {5 `2循环语句
$ H, @- Y. O% z% H1 x (1) from <statement sequence1>6 X% a; \$ I: R/ c8 W) P# \
until <condition> loop
* o4 z7 v7 b2 e% o% U <statement sequence2>;
/ `7 p- K, T2 {6 `0 ], z9 e3 }, a' { end;
2 J( _3 V8 F5 ] (2) while <condition> loop
% j; }; ]" _# R$ r: n <statement sequence1>;
) \( q% s- ? N1 L% A end;
~ |" K6 U- Z# l+ @: o (3) repeat 6 D1 ~) E% L6 n8 @ X
<statement sequence1>;# c2 R5 [) r$ N9 F7 D
until <condition>;
! ]8 d/ Y& y; P" x (4) for <condition> to <condition> loop; J, ?6 K! Y5 S1 F* [
<statement sequence1>;
% ~1 P' F/ F0 ~9 J; S2 ]7 N next;
2 I' X* P+ T3 x; H- W3中断语句
0 {/ N- }" r+ k& d; S& v waituntil <condition> prio <integer expression>;
K! e/ R& S; o! r* F" s4 @- G
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以上为常用的函数！7 ~# g, L1 I. G; _
还有很多，如有需要我把资料发到你邮箱里 & S" X5 o+ Z( s& h9 c: k+ e. ]$ C
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