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发表于 2012-11-13 08:48:12
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1判断语句" { y. |7 U# j. E0 t! t
if <condition> then9 t1 o& l/ [# A
<statement sequence1>;
# [# {/ D! U: q1 U: A* l. M9 H elseif <condition> then
8 T" @: @% W! ]3 e2 K) E- U <statement sequence2>;1 E/ V+ A" }, ? u9 \2 Q/ s# s
else # q1 r* Q0 \1 e( j8 F9 t
<statement sequence3>;5 w& I( U( t/ l% E- P0 u( @( M7 n
end;
2 ^0 c- ^7 ]9 ?) Z4 H w% G如果分支比较多,用:
" I6 _4 Y3 z4 G, M* d6 ? inspect <expression>
B1 Z3 I8 }% O" M when <constant_list> then
" u7 w, |: I' [* A2 r% O) u <statement sequence1>;" z& @6 ~9 I1 n5 s$ B2 k. ] `, }
when <constant_list> then& D* P, F( j5 O5 @( c+ ?/ g$ `
<statement sequence2>;
6 H9 x4 D/ w, `8 K0 j8 B! E; N/ y ...
, ]& E/ t- m4 Z& A+ e$ @$ ^ else
( z' j4 ?& }% W- b- B. a <statement sequence3>;
$ l, e& C! W1 C4 S6 X9 g- @end;
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: n, X2 w/ V, @2 i, |2循环语句
$ W; O4 p/ B. E1 Q4 v8 V- G/ U1 J (1) from <statement sequence1>
/ m u- s2 k6 h9 l* N until <condition> loop, M% Q) w6 s8 R: L+ ?, l( ?
<statement sequence2>;
; K# C& ]7 Y4 {) l end;
6 h) G1 T+ w/ B: y$ n (2) while <condition> loop/ [$ g) C) z7 w, P9 g$ l; o* a
<statement sequence1>;8 O( L; F$ R3 ^1 H7 s
end;
% Q$ i1 l$ C0 k! m2 ` (3) repeat E& W4 L( F" B! H/ `- q
<statement sequence1>;% [* F; V0 v: m9 k" c/ o# u8 [
until <condition>;
! W# W. C$ ~3 G) P3 t (4) for <condition> to <condition> loop
$ k' b: U- \+ B1 G: d" e% m7 o <statement sequence1>;6 {6 ]! h7 v: C3 u9 z
next;8 B1 V, \+ u! o( r. ?7 G
3中断语句! v8 |% H& K0 g9 C
waituntil <condition> prio <integer expression>;) }: C$ A6 B9 e! z2 p# ^
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以上为常用的函数!
9 x% @. W7 r) k1 {还有很多,如有需要我把资料发到你邮箱里 , S( r4 v: l' u
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