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发表于 2012-11-13 08:48:12
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1判断语句. b# V! w7 \: K$ e# U& p8 |
if <condition> then
' y Z- w$ q8 O0 ? <statement sequence1>;- ^) h' G) ?: ?' r _) z! q1 c
elseif <condition> then2 D7 |- d( w# N1 M
<statement sequence2>;
- U6 r" T3 j1 p' Z' E) z6 w else " V$ X8 i3 u8 P2 M V5 X% _
<statement sequence3>;/ l: O+ [" L v) ~" D" r3 D
end;
) a, ]3 q/ }$ C2 o; Q0 C如果分支比较多，用：: a5 k/ z8 y% M- {7 X
inspect <expression>
2 k- P$ c2 O9 E) V0 y5 l: u when <constant_list> then: C/ ~8 I" b9 t+ X
<statement sequence1>;
* b8 M5 K4 G6 h& T! { when <constant_list> then
; |6 O# B8 y% J8 N6 e <statement sequence2>;
. s) j1 A, U. K! u ...
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<statement sequence3>;
% M8 e* G; q: m& x; xend;
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) O- \0 J' u3 }1 z/ [0 L; j4 i2循环语句8 E. w. f& u g5 F5 c) k
(1) from <statement sequence1>
8 i% l3 E2 R/ p( E$ E until <condition> loop7 K; @* R1 D# y
<statement sequence2>;
* D% b( M& c6 U# V. W end;, t, c% T! {; R3 }
(2) while <condition> loop) l0 T$ W+ H8 d% z8 M* L" R
<statement sequence1>;
& c! ^8 l# l& J* i# }/ X1 T6 |2 P end;7 a- L8 s2 a; G/ i
(3) repeat 1 ~. L H8 J; ^( m% Q8 h" T
<statement sequence1>;
# Q) C! m3 \6 w5 F# w) x% s9 y until <condition>;
) X/ Y' e. u( X7 C- H+ n (4) for <condition> to <condition> loop: Y# G0 a" c5 U' N* G
<statement sequence1>;1 A# l( |& [$ m( N# `; g
next;# U! m- O3 ~/ }: E& s D0 J
3中断语句
$ m' b2 q9 N9 o7 G waituntil <condition> prio <integer expression>;
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$ x) }+ G/ m; f) {. |# k
9 a! r( Q% ^3 o, O: S- F以上为常用的函数！
s, T, |6 v& \1 \: t8 A; `! v还有很多，如有需要我把资料发到你邮箱里 ' y# q7 Y6 h0 K% ` q; _
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