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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4 L, L1 R w, ~' x. _4 F! x8 G
if <condition> then# n/ G6 z. ^: [7 K8 \
<statement sequence1>;
6 V% k( I2 f2 S6 m' b$ ~ elseif <condition> then
7 T. _0 z4 b. Y2 N' {$ X <statement sequence2>;
& `/ w& l: a# q8 g else
, e/ W+ p' S0 ^+ K; S1 ` <statement sequence3>;, V4 f: h3 `- l( i1 K4 w
end;
9 _# Y6 k, ~& T2 K/ B如果分支比较多,用:* T2 s6 w. I) a" K+ v
inspect <expression>
* \( R) j }6 `# r B* |4 k when <constant_list> then
- G6 p" `, P" g( P- b/ h <statement sequence1>;
6 F: Q4 f2 ~/ {! X' V0 g when <constant_list> then
" ]( F/ q% \( G" Q7 X# J* E/ A( C <statement sequence2>;) I9 c/ }7 m1 H! F7 F$ ]" x$ @/ d
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else
. ]3 n# R; J: d# w <statement sequence3>;. G" K$ }: l. L. ?6 h) p/ z+ K" U
end;
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4 O% Z6 h5 z+ U) x* W2 ^2循环语句
. A# @' i2 G- _+ Z. S; f (1) from <statement sequence1>, u0 N @: A" {
until <condition> loop. d% c6 L3 w5 C
<statement sequence2>;9 t& E0 l" w# P! @) b: m+ j& @1 i+ ^
end;$ w, N6 M" v0 U7 Q" U- J) K9 f
(2) while <condition> loop
6 W6 ^, V) U7 k <statement sequence1>;- `1 G5 D/ e$ Z0 K" O
end;) \* ^ k6 V* S6 [% I$ h
(3) repeat ; [8 I* K/ K4 W0 ~, E& Z" r
<statement sequence1>;( f) f% q3 U7 U
until <condition>;
, W7 _# C! G& V6 |' s, u" R (4) for <condition> to <condition> loop/ j0 N E8 c/ R' v: Z
<statement sequence1>;( J4 C+ j# K5 F9 o
next;# Y$ R' o0 |$ p3 b+ w1 u0 ]' X
3中断语句! s* i: o/ b' u9 g+ Q$ B
waituntil <condition> prio <integer expression>;
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以上为常用的函数!! }. A7 T3 v: p# M8 T
还有很多,如有需要我把资料发到你邮箱里
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