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发表于 2012-11-13 08:48:12
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1判断语句
0 a1 k7 u8 R, h8 q, [, f8 { if <condition> then8 H) Z9 [8 T% v+ Z2 h9 D; x3 z
<statement sequence1>;! a% Y5 k! Y! t4 {$ q) I- d; h- d5 d
elseif <condition> then$ ]# D/ n4 f2 U% ~2 c* t. f
<statement sequence2>;
5 F! b; m- |2 L else 8 O8 R" v' L1 _+ t
<statement sequence3>;+ T+ \5 A& x8 Z( p1 y2 R
end;
6 g% [0 V; r% I( l' ~如果分支比较多，用：
) Z' d3 |0 w% r) V4 C( s3 M inspect <expression>
2 q! j6 T* u0 e) c when <constant_list> then3 n! u" u" t. L! n) B: _
<statement sequence1>;
( j, f$ E; i( T; U& P" j& q when <constant_list> then
: q. g: z3 `6 @/ k1 G) V. x <statement sequence2>;
; z4 T4 l/ U! N# S ...
+ {% }& e+ X0 D# n; h4 z. H' X else
. W! d( C% ]; Q2 f6 { <statement sequence3>;
8 `6 S) Z/ @, A- J" L% Z8 L' I7 uend;3 j C9 Y& {, n4 v1 @4 q# U
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2循环语句0 I Z* y. @$ t* |4 H& @% q% a
(1) from <statement sequence1>
: _0 \4 k1 S" u; w0 p until <condition> loop
$ R! W8 s5 ]. `- a% u G <statement sequence2>;* e. G$ G+ Q1 u* o! O F7 @
end;
* g/ n+ D V' H( J (2) while <condition> loop
5 C. _& Z& S) v" k/ d <statement sequence1>;
0 J- Z6 A3 T: t2 m end;
. ? T0 `6 U$ p: c* B (3) repeat - X/ X8 n. r; z% k/ g0 j
<statement sequence1>;0 Q7 q4 X0 Y5 \7 i" P' l
until <condition>;% i7 w1 ?# U4 F/ u3 e" r
(4) for <condition> to <condition> loop1 Q, `' p' x9 y3 y' a) K' g7 l2 M
<statement sequence1>;
1 D6 A1 X# a' K- _4 Q) j, G next;
! q0 J, s I. x# i& V% p3中断语句
9 V6 S1 F; g$ B3 [ waituntil <condition> prio <integer expression>;
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& b J! t+ }4 i
以上为常用的函数！" w5 `/ W9 u Z# c+ _/ J
还有很多，如有需要我把资料发到你邮箱里
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