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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句/ x+ _* v+ j, k: P' E. X1 _$ H5 |
if <condition> then* v2 ?+ d+ q1 g7 ^/ K9 M
<statement sequence1>;3 ^) M* e1 r! a! L4 e: ^: o
elseif <condition> then' b8 a7 x, h" R5 k$ ?$ c. M9 |* P
<statement sequence2>;
- e d" R! a) d. l) D* i else L4 {6 h$ K: O, M; ?$ o
<statement sequence3>;
. t$ S x# u8 K3 T# O end;
& X6 Q5 Z- d" Q1 p如果分支比较多，用：
+ r! k2 T9 b% ~% J5 K inspect <expression>4 u. |/ b4 W4 V5 r- w0 J4 S
when <constant_list> then
1 z: F; F* Z( e; z) v <statement sequence1>;- S& x5 u o; j+ [4 h/ S3 j, w; L
when <constant_list> then
5 z+ _' @& ]" [, j3 n9 Z2 |1 L j <statement sequence2>;, I( g5 d B9 T- Z; S
...$ {! ^6 y2 G- R: h/ p4 N2 m
else
( u% [. p1 b @7 A <statement sequence3>;
2 [% r6 J6 i+ m+ zend;
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2循环语句
0 ^* T3 h; S p (1) from <statement sequence1>
: j0 g1 q( T$ R1 ? until <condition> loop
* w; M. ?0 m+ F/ [ _( ]8 t G6 M <statement sequence2>;1 U0 C8 S' W" J- K0 @2 R0 K
end;
! n1 }) _' m5 @, f (2) while <condition> loop* S5 s2 }8 _7 A2 H
<statement sequence1>;
2 O0 u1 r b {/ u% m end;4 N3 @& [# E# j5 Y# ^. n* z. c
(3) repeat % K0 ?" O a. I& H% p6 s/ R* r0 a
<statement sequence1>;" t# k4 ^% R0 H5 R; L& b; q
until <condition>;$ i6 K/ O9 R; F' o2 u
(4) for <condition> to <condition> loop
2 ~5 r9 v6 i& T' Y ?3 @& s <statement sequence1>;2 J: I: Y$ w8 m7 f8 j; b. j
next;9 k7 o2 F6 b) U/ N6 @& c
3中断语句
3 p# w" y9 r$ ]- {$ W6 Y8 \ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
# O- _, X, i s7 I' N2 l% V/ e# C还有很多，如有需要我把资料发到你邮箱里 " h I3 n: ^: w; }& p+ k
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