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发表于 2012-11-13 08:48:12
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1判断语句7 W- D. T0 o7 f: D, O4 Y# m
if <condition> then
/ O- c/ { Z. `: [9 g8 }7 Q8 x <statement sequence1>;. x% b& s% c+ P/ S8 l
elseif <condition> then/ o) S4 W, b4 y6 x! U
<statement sequence2>;: b' ]$ [$ n4 _' z: h5 @
else
; n* F- b; w9 w: r <statement sequence3>;) y I& b* p5 |0 H
end;
" e' H! L" Z i. ]+ n: M4 T9 F如果分支比较多,用:5 r% r8 P. Z, X
inspect <expression>
/ n* v4 Y9 p, r/ Z when <constant_list> then: _' m* E( j- I6 X) ?
<statement sequence1>;7 \0 \/ l8 g6 d9 W
when <constant_list> then
- @3 c' e# f: N4 a. N; N) Q4 a' n <statement sequence2>;) I9 @' X2 P! g/ U
...+ P5 ^4 z: Q# [9 ^. y
else
; a% r" ]" m9 O- z <statement sequence3>;0 O/ g: L: T; K6 z, c
end;
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, y. d9 `, b9 _3 h2循环语句, w4 A" `0 a) V& f7 Y B
(1) from <statement sequence1>' c; N0 ~ C/ I( { ?
until <condition> loop
1 p( A! F% d4 S <statement sequence2>;+ v0 ~2 i' ?. A+ x. K
end;' S: e$ c& L* E( a6 S' N
(2) while <condition> loop
/ @8 C: Z; {0 u: Z7 u <statement sequence1>;
; `7 U7 z" C5 e# \2 p end;
& I- M( g8 o7 g \3 N/ n (3) repeat % [) h- T( ^2 @
<statement sequence1>;
! Q- S4 t5 z) ?. f until <condition>;8 E2 W* H' o# @! ^$ ~+ M
(4) for <condition> to <condition> loop+ S P% w' f. l% q; ^- G; Y
<statement sequence1>;
, v% g$ ?2 R/ r3 T1 p4 ? next;
' k3 K2 T% t- N" `# Z3中断语句
8 W1 I% d+ D# {* Z3 G waituntil <condition> prio <integer expression>;- V' O# D; ^1 _" T# Y! \' M
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( b' Y, |+ \; K+ Z( _以上为常用的函数!
2 r! d+ I, C! o# H; T$ {# ?还有很多,如有需要我把资料发到你邮箱里 1 E2 u7 Z, [) b0 Z K/ e
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