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发表于 2012-11-13 08:48:12
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1判断语句) e6 I# S3 ]0 `7 W: u. `' A
if <condition> then
( a C; s' L* E0 A* @2 S: ]( g <statement sequence1>;4 e" Z; h7 v* Y! |' R& @1 I1 Y1 G. ]0 W0 k
elseif <condition> then
7 p6 \3 A s) r0 R1 r <statement sequence2>;% w2 ]* Z( \; b
else % I$ E3 ?' B) K6 w
<statement sequence3>;
* T/ a/ k5 i2 r0 v% ?6 G) c end;
4 L; A" @# o {5 t2 j如果分支比较多，用：' Z& l, D/ [8 \) N F) w& m8 g
inspect <expression>
/ e- ?, K. b. g9 b+ S% k, s when <constant_list> then
7 [1 I6 u( v1 _9 I <statement sequence1>;# i" i1 ~- j4 \5 z( E8 A7 d
when <constant_list> then4 u( _2 X4 T6 G- @
<statement sequence2>;) y1 @: e- D* i3 D: c( Z
.... Y# k2 G% D6 Y8 {3 H
else
) a Z7 U/ N- X+ R% W <statement sequence3>;
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2循环语句
' C1 L% Q4 z, i' D' |* N+ Q (1) from <statement sequence1>
$ t) @0 C M8 ]3 S6 q4 f until <condition> loop
' p! P$ p( c$ z2 J1 @; S( ^2 r <statement sequence2>;
+ ]$ U* x* m& Y' O( n: j8 i( A end;% p( [% D& k9 b
(2) while <condition> loop6 X6 v- Z+ T9 m5 m+ F6 G
<statement sequence1>;* i7 b! h2 y N6 t1 a. W
end;
* ]. w8 [; J: y5 ^$ ^+ s (3) repeat ; ~! ^/ ]4 ?" d: x% j9 n j
<statement sequence1>;& d y7 G* ^+ Y, X- W$ D$ O- g0 Y
until <condition>;
1 B, ]. T8 V* i v5 `, C2 }; w (4) for <condition> to <condition> loop
' X0 \7 b7 r: \9 G: Q7 R7 Z <statement sequence1>;% @/ |9 d3 D) Q! F: Y- [8 z
next;
/ t0 q! B; P' a' E% X( o4 ?3中断语句# q* s% N5 l4 ?$ {5 a, j
waituntil <condition> prio <integer expression>;
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2 W( |* S+ D' ^3 B9 U1 @* Y5 X; J; e以上为常用的函数！
; L# A! R; a0 m0 ]8 r还有很多，如有需要我把资料发到你邮箱里 4 M3 X/ A, M& |* H* X4 t1 ~
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