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发表于 2012-11-13 08:48:12
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1判断语句
9 L. ?2 s, \) W5 g w) k( d* H if <condition> then
: P& \2 P; d1 P$ R <statement sequence1>;3 y# z8 P5 |! Q" J# U$ g0 Y
elseif <condition> then! K1 b j. Q S; v4 F
<statement sequence2>;
) I& y- L ?# g) R else
* |% M, H5 i$ O2 C# M <statement sequence3>;
6 D. ^: t* U- d% r end;5 `" j! N u- q+ [
如果分支比较多，用：
, R4 E- J5 z# K' R6 W1 J inspect <expression>
) y3 Z5 ^* B) Y6 k$ G8 \! M when <constant_list> then m2 M( S' q- U0 n
<statement sequence1>;
I0 K5 t- z3 @8 i# h2 q( { when <constant_list> then
$ t% b* H4 X# e) X <statement sequence2>;
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else
7 E& b6 T# `( ~1 O' U7 N1 d <statement sequence3>;& Y) W8 l; [0 t7 z4 L/ Q
end;/ i8 { z; I' ]6 A; w& q% y
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2循环语句
( d0 S/ z6 Y/ B* b( d8 p (1) from <statement sequence1>- g% T! q7 l5 i1 X$ q) p
until <condition> loop5 L$ F, X3 l( Y% h$ c
<statement sequence2>;
7 a6 j. g5 ^" `5 M! Z6 I" L- h end;& S! `6 n1 ~2 b$ O# p1 V% W V
(2) while <condition> loop
6 K/ ], D8 @* E; a* x& ? <statement sequence1>;3 \+ H1 d- [+ h5 e( f. b5 ~
end;' c; C. V" F: v
(3) repeat
( h% ]( t/ A& S* Q, A& J <statement sequence1>;
! g; @ r6 Q$ W; q until <condition>;$ U g5 N* r- u7 ^1 m3 J& k
(4) for <condition> to <condition> loop' h" C ^" o2 s+ C$ H. P1 ]. w6 _* i
<statement sequence1>;
5 U+ N, E' ?4 J3 n0 e next; z: j& F5 G% v1 b
3中断语句- S5 l9 f) H5 o5 ^
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
. _) N K$ D# m3 R还有很多，如有需要我把资料发到你邮箱里 U3 i% X1 K5 ?* V0 D( e" X! V3 U
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