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发表于 2012-11-13 08:48:12
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1判断语句
) u6 C! T2 K* i! `" n if <condition> then
2 s+ B5 H/ _! Y6 Z. ^" a8 V& L <statement sequence1>;
2 j2 x3 z! d+ Q elseif <condition> then
9 |' m2 D2 N9 ]4 k <statement sequence2>;6 P5 k" b- `- L; y, T) X& e* q
else + ?5 \# {& ~' ]/ ]+ V
<statement sequence3>;; g; ^. d _1 ^
end;: u. Z# ~+ p! D( [) ^+ `1 D2 T/ U% o
如果分支比较多，用：
5 E% a9 y' p6 G+ c' O! @& i3 ` inspect <expression>
, S$ N" [# [0 Y/ }1 w8 \) O. B; d9 M when <constant_list> then, q1 @6 d$ s$ G7 y, _
<statement sequence1>;, Y3 E( ~, n& r% F
when <constant_list> then# t( N3 v6 J1 V2 y7 m
<statement sequence2>;6 o$ W' H: l& z0 s( ^, v
...( Y* E, c( i: m; e+ v9 w
else3 J9 D& C( T6 v4 Y% n9 J
<statement sequence3>;
& o; k4 m% @7 Vend;
- J+ s# g8 G' I& }
- O; s Z: j$ S7 ]6 l4 ]6 p2循环语句* s1 Q4 ~* H/ D- Y: v+ H6 F! |8 }7 J
(1) from <statement sequence1>
- G0 n+ d! p) @) H/ `0 m/ Z* Z until <condition> loop2 Q1 ?9 `( i6 V! Z8 {& b! X' t
<statement sequence2>;
# z# y: A ?3 _2 Z$ c) | end;: B+ v6 D9 Y; F W8 v- x; |
(2) while <condition> loop- a1 H0 b- v# o7 E8 Y; O: e3 s
<statement sequence1>;/ E% O8 Z9 h2 z6 C% j
end;& x. H0 E& y, m: K( N5 J) R
(3) repeat
- s" N2 C/ _; A& O4 T, a <statement sequence1>;' r! u$ k9 R5 r( v- \! m. X
until <condition>;8 o. i N* k0 A+ a3 R% T6 k( s1 ~
(4) for <condition> to <condition> loop2 B0 a1 ]: I/ P! @9 _
<statement sequence1>;' Z' {. i, U% }1 b/ X
next;
. @& A ]7 N* I6 Z7 z3中断语句
; B& U6 U6 @% _/ B$ H* T ^ waituntil <condition> prio <integer expression>;
3 S* ?) f) G# r5 D: O( n" x; x5 v+ {% v+ O
/ v8 J- r: T1 u$ a4 Q. u
以上为常用的函数！
! {$ y" M3 N. K5 J7 t. T还有很多，如有需要我把资料发到你邮箱里 8 w; C; w6 N& c7 a
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3 I% H+ a$ V0 L: M. V2 C* V: w
6 O0 G, S7 h% }% \* Z' s4 y& R1 i g1 N+ e- Q) d' Q$ @. h+ {
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