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发表于 2012-11-13 08:48:12
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1判断语句
0 O! u: \2 q+ c0 w- q8 |" v if <condition> then
|4 B. Z4 [! q$ ?4 I6 P7 k$ F <statement sequence1>;8 O2 n6 N6 i4 c. x3 m/ j
elseif <condition> then
+ i6 s I9 l" k9 o. I* u <statement sequence2>;6 G) J# o4 s" b! k3 N! P/ S. B, }
else $ L) x# [) Y0 ^7 n
<statement sequence3>;: s/ t$ Z5 ^. s& p: n
end;
) X/ {! B1 h4 C# J a如果分支比较多，用：' S; `8 _& Y7 [$ g! ^- Y. c
inspect <expression>3 S7 K- ?( D$ G
when <constant_list> then$ b1 m0 F3 J; @/ `: S& C
<statement sequence1>;
% ]5 z3 z- R! s when <constant_list> then
( @1 T' r; K& m& _5 T$ | <statement sequence2>;
- d5 c" U- i1 ~) @. w ...
- ~# m8 ?6 h! }( S else
4 m% b! A! ?9 K) M2 C5 g; x; K <statement sequence3>;
Y c7 F) @6 U1 k- t2 u/ [) y8 J mend;* ^1 j) L3 k$ R0 T- N& U+ r/ j, _
* a w; }. I( l' K2循环语句$ E3 ^# g2 e9 G8 O+ c; b
(1) from <statement sequence1>
m) n7 z1 X0 N) j until <condition> loop& ?5 G+ I( [7 g3 m S: C
<statement sequence2>;
- P1 M ^" [/ B/ t end; n+ d% }+ y8 d! T' L6 F/ b
(2) while <condition> loop
' D5 g( x5 v3 u# E <statement sequence1>;
6 b, y: U) p1 ] end;2 A2 @. ~9 q* o4 d7 K3 u9 v# ~
(3) repeat
, k9 h" N6 B5 z. f0 d" `4 h <statement sequence1>;
0 E, j/ c! z; T" [$ Q- O4 ~8 T/ x until <condition>;
1 E4 M7 L" K7 M3 B (4) for <condition> to <condition> loop
6 e& m8 @( I, B5 b <statement sequence1>;& r# ] p& b% G" y' V
next;0 j" S' d3 o7 [0 Z: v
3中断语句
% p% O* ~" X. w9 d waituntil <condition> prio <integer expression>;8 u N: b8 N' m# y9 b
% I4 M) j. _" G4 U% T
0 H/ ~! _" O1 \& m- U6 s# ~9 w以上为常用的函数！
* c9 d* Q, s1 R$ R$ O6 ~" [还有很多，如有需要我把资料发到你邮箱里
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0 b2 {7 ?4 s1 W" s8 L% q+ p. T, ?* @4 x1 m+ R
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