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发表于 2012-11-13 08:48:12
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1判断语句. A' V0 N( p0 L* e
if <condition> then
3 e9 M$ Z# P& S4 q- _) ]9 H9 R. S <statement sequence1>;3 K. M# ?" M9 O# K
elseif <condition> then' n% @4 U' L& y6 ~4 a. B+ ^9 @& A
<statement sequence2>;- x4 g7 F3 { g3 F. d1 E$ A
else
; B+ R7 l2 A' f/ S' L& {% j" i* O# s <statement sequence3>;
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如果分支比较多,用:
$ k; _5 E, ^6 f; M$ x6 J4 v; r inspect <expression>! X. t! y7 e( ]" T7 {/ Q; X6 [
when <constant_list> then
9 q+ c9 E1 P7 \ <statement sequence1>;
7 q8 b4 [8 p5 e9 c" C( d/ A" G( f: C when <constant_list> then
1 }! ^) o2 L6 ^ T <statement sequence2>;) C" d: I+ X- x. z( w/ N8 m0 h5 } j
...
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<statement sequence3>;
+ r" Y6 V& H% u1 V( D! Iend;
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: W/ q4 h. s* F& v6 \2循环语句% e; A8 `: D$ U! m( L8 N: O
(1) from <statement sequence1>
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<statement sequence2>;" w8 l: v, S) ]: r4 {& n0 A
end;
7 ]8 _! u, T$ r (2) while <condition> loop" [+ L) n; h3 ^; r4 O; z! U
<statement sequence1>;$ r' |( j& }" j5 g3 ~1 o
end;
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<statement sequence1>;6 ~5 w7 L! Z$ h
until <condition>;
# o g$ z! L6 U c. B2 K (4) for <condition> to <condition> loop. t& Y' l7 M0 p6 i9 X6 o$ _2 l
<statement sequence1>;# b1 J/ x/ @: w E5 `% H2 g
next;
$ M1 A7 c0 I/ Q; R+ T8 V3中断语句- Y2 `& G. A2 { M6 S% p1 H
waituntil <condition> prio <integer expression>;
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) z( k( `" c+ k) Z) B2 P以上为常用的函数!* Z$ V/ {" f' L0 p3 Q
还有很多,如有需要我把资料发到你邮箱里 , s: j1 \+ |; ]
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