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发表于 2012-11-13 08:48:12
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1判断语句+ v, ?" N' a2 G, O- x' m
if <condition> then7 d7 \" D2 [0 m* J* v' o" [( M
<statement sequence1>;. |, T1 b4 M) t7 ]. c: ~2 Q% m( u" N% s
elseif <condition> then
; j2 ]( c, B1 P8 D, [ <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：- z1 K0 B6 d6 e o- U. V! ~, A2 A
inspect <expression>
* k+ P' G" \$ G4 } when <constant_list> then
' R0 P% G4 ^; n6 K/ B6 \ M <statement sequence1>;4 c+ O; @5 A/ \# S% {6 l3 Z y* s
when <constant_list> then3 \; c0 p" ~" `/ d) v1 u
<statement sequence2>;7 @9 N9 g" d' x6 U7 x
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else
4 N- i8 C7 l' j <statement sequence3>;
. j8 q5 }" Y8 s' N$ b2 ~ uend;3 v- O% q k+ h3 ~
% T0 N1 J3 N: S. X, R2循环语句' r. w8 C5 \2 n! h* U( \
(1) from <statement sequence1>: y: i" e7 j- p, m+ ~4 k
until <condition> loop
; { q& B7 L" y) ~6 C <statement sequence2>;6 ~ B4 N* ?, e8 A+ K
end;9 H! Z0 D/ e8 K8 h
(2) while <condition> loop
" a. `; l7 A2 v( O& R <statement sequence1>;
9 Y+ c! |2 Y) D8 D- b& v0 j end;+ n2 x& W( E- F4 P
(3) repeat
% z+ s5 P* C1 ^4 M$ e <statement sequence1>;
' `8 d n& J1 v# ~+ w3 [ until <condition>;% V4 m# X& I$ x9 s* _8 K" v+ s D0 K
(4) for <condition> to <condition> loop
6 g+ |) P: c2 B, o& e$ y. c <statement sequence1>;
$ v/ V! c, Q) s' d0 p. C. s# C: ` next;
! G+ ~1 l- ?8 z4 s3中断语句3 }4 k5 M1 T$ X3 s
waituntil <condition> prio <integer expression>;$ j, A) n, y% g# _1 s1 ?, v
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以上为常用的函数！
7 b3 c1 `9 R g, R' }还有很多，如有需要我把资料发到你邮箱里 |! E- r- K* f% G
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