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发表于 2012-11-13 08:48:12
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1判断语句3 o& ^5 ]$ h% M @; ]/ G+ t: J
if <condition> then
/ Z3 j# Y4 \) b; K. U0 q7 L <statement sequence1>;
* q& Q) T& _- X+ u) T elseif <condition> then8 z4 t l0 c4 U8 V$ R
<statement sequence2>;
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<statement sequence3>;8 N- t' {% A% c) w) A% Q+ ~
end;1 J0 r# d/ b% _; U
如果分支比较多,用:( \7 J8 c! n! Z# K* @0 X' _6 x
inspect <expression>
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<statement sequence1>;
9 M" f5 g" ~% d" D- s* e, b2 G when <constant_list> then. Y9 a3 b& @0 f2 d' s. z" y
<statement sequence2>;2 q+ x2 U% o: H' T8 f
...
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<statement sequence3>;3 u- l! T0 D8 k/ \0 G o/ _
end;
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2循环语句2 ^- `. l8 K) \5 U* x
(1) from <statement sequence1>
9 i! i: \- A! B. G$ d until <condition> loop/ n& y# `7 E# V4 i. P! s' c2 X
<statement sequence2>;- C6 A; d5 [" f' J, K$ g' P
end;4 N6 G- k. J( \8 D
(2) while <condition> loop
3 c6 J' p6 V: N, u0 ^; E4 i <statement sequence1>;
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(3) repeat 6 d6 J* ~; j2 j
<statement sequence1>;, M6 x+ X$ r5 `% T0 N# @* i
until <condition>;9 w: O P7 n( C+ U* u
(4) for <condition> to <condition> loop
" d$ |' A4 S) A! f3 r/ Y <statement sequence1>;! J1 T% S g# C
next;0 N" q3 J6 P0 c W" b
3中断语句) z; m1 z( X" [ X: a9 p, L
waituntil <condition> prio <integer expression>;' l8 d5 G$ Z4 n0 W+ q2 B c- [ E
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% ]4 I+ l5 x3 E2 s以上为常用的函数!
9 b, D; k' L8 J6 i+ L5 o2 {还有很多,如有需要我把资料发到你邮箱里 1 o% d$ g* W* e7 I- M) @+ d" i
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