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发表于 2012-11-13 08:48:12
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1判断语句
$ z. ?0 Z/ {) F Z& L if <condition> then
* h [# b) b) V; m& U N! E <statement sequence1>;
& L4 f, w5 i" m4 O! h elseif <condition> then9 H1 V3 Q% E/ o
<statement sequence2>;1 i: d4 u+ o9 Z8 H. \
else & C, R P/ S& r/ v
<statement sequence3>;
0 C2 C. I& Z# B/ s* ] end;, }5 {% ?4 d1 }; |# P9 M
如果分支比较多，用：
% m7 l& G+ n3 E5 j, }( p) G! h inspect <expression>. P7 k: J, X" Y3 u
when <constant_list> then
5 v- R: `, [0 F" r+ I4 \$ ^$ h( I <statement sequence1>;
) I: d8 M5 V+ n4 a when <constant_list> then+ o( B, q( d7 V- O6 U+ ~
<statement sequence2>;4 @' `, \/ y9 u
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else
! ^! A: v. `; Q5 `" \9 q% O0 | <statement sequence3>;' i9 L* u) }$ Z. e# [
end;
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8 Y3 l/ e2 k8 }0 n, C; N) g+ C2循环语句
. }7 o- D9 C: {6 R* I/ T (1) from <statement sequence1>8 N$ \- f/ M: S# n i+ D% I( z* H
until <condition> loop
# O m1 F+ U% x/ @3 C# X <statement sequence2>;) U: S( w% ?5 k. Y
end;& `7 ?3 z' t. p% I4 ~
(2) while <condition> loop/ [$ h$ w# V+ [; K
<statement sequence1>;, {! h$ w) [- r9 P' a6 D5 z
end;
7 S6 W, T( }9 B/ r (3) repeat
, @$ H: t% ~4 u* ~% I$ `% Q <statement sequence1>;
( S# d: z3 I& V5 L until <condition>;
1 h. {4 x6 _/ v u4 \0 ^3 L (4) for <condition> to <condition> loop
' i& N3 z' ]7 u <statement sequence1>;
% R. _! Y- u6 a/ u next;6 O. k; ?$ ~2 g
3中断语句
: g A3 K0 U0 y+ g6 H3 H4 p% b D. G waituntil <condition> prio <integer expression>;+ h2 r* e. S7 W: ?% Z: d9 p+ O, r$ ~
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0 k& ?* g- @9 K5 y" `以上为常用的函数！4 @$ i$ R% L! I. j7 l( {
还有很多，如有需要我把资料发到你邮箱里 5 x1 D; H- D( [" W8 M" I
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