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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) @- {0 Q: }$ S& N W
if <condition> then6 N- w m. d3 m" w! f. i" W
<statement sequence1>;: p' @6 `( H- @) k7 x) R. [
elseif <condition> then
8 c# n% R A6 Y5 \0 y <statement sequence2>;
7 j( h* U, G) d) m x' b$ _! ] else
' T( e2 H6 L n6 b <statement sequence3>;6 g( |. z2 T& d7 ^: ^0 G- r; X2 q
end;7 r3 `- ?( N* u/ d# C
如果分支比较多,用:: w2 N5 O9 g4 x
inspect <expression>
% g$ c% v1 w' U8 t; | when <constant_list> then" G, j c1 M! Z6 O# y1 e# D
<statement sequence1>;2 Y3 g* \6 |" q* H
when <constant_list> then
4 R- y, Z% {, ^3 G <statement sequence2>;! T# a; Z# t1 k" @+ H7 @+ j
...
/ t. q' G& \2 t else
R$ r5 d9 Z& Y/ d. G <statement sequence3>;
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2循环语句
* Z5 i9 V9 M8 i* X (1) from <statement sequence1>
8 g5 k+ ~3 k+ l* u until <condition> loop9 K2 A& \- M( I% e0 P
<statement sequence2>;
# G" j" D' u4 a( C; c: j! x end;
T& i& \7 O8 t2 w B& d8 l (2) while <condition> loop, q8 C0 n8 b2 b; ?8 B/ ]
<statement sequence1>;
+ x% c3 j, h( M V/ L, @9 s end;
1 u$ \0 }2 h, m (3) repeat 5 S+ R5 }6 ?2 l: O% z: z
<statement sequence1>;" ?5 N' ~% d6 L. _3 K4 g) S5 T
until <condition>;7 W& ~. f/ V% y2 e. S, W3 L8 Q3 Q
(4) for <condition> to <condition> loop
4 U5 C) [! Y0 S& P- N <statement sequence1>;/ j* _9 M* Y1 O0 X
next;
, k' S# @2 ?' B* `& l8 X# i3中断语句; k! r# C( M4 `6 w( S. `% @
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
7 t4 \7 h$ c& p2 z$ y4 a还有很多,如有需要我把资料发到你邮箱里 * G& H' B3 M/ U; W
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