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发表于 2012-11-13 08:48:12
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1判断语句0 t3 ^$ s( b% h5 P$ \
if <condition> then9 \! f( u! k2 a* n& C& m
<statement sequence1>;
' H9 b# @& q' s elseif <condition> then( j' V! K% @4 E
<statement sequence2>;
; Q R$ n/ l) Y8 \6 ~7 y. q else
* \5 A' M! p6 z! Z; w7 ` <statement sequence3>;8 m3 |% z7 L, b! y% T6 [
end;! i) q M- {) Z9 E$ C2 k
如果分支比较多,用:
. B; {0 a! T1 S& ?6 `0 H inspect <expression>
% u2 R; p/ X, x' U* { when <constant_list> then9 S* H9 z8 u- t
<statement sequence1>;
: L. }; F6 [# S/ D& z& r" G when <constant_list> then, q: `& f2 \2 n* s
<statement sequence2>;: f( @6 I% W8 r# \
...
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<statement sequence3>;- }& [% V+ Q3 K4 }% \3 }5 i
end;/ s$ Q* j# r' n
+ M, e6 M3 y h2循环语句; E. |& C9 H- ?% A7 j2 X4 m- L
(1) from <statement sequence1>5 G. J8 M( I6 j4 v+ N8 w
until <condition> loop) ]5 K- o: R( V" H: x' x) k
<statement sequence2>;$ k& U( r" O" Q' A7 a' m% J
end;- d0 b e x& Q: u2 D0 I
(2) while <condition> loop
; w7 Y, e4 w7 n! q L% f. |, k <statement sequence1>;5 {8 U& B g. [! L
end;
+ E; j9 h3 d+ D! f7 J# R (3) repeat
" x- M* Y5 e8 q <statement sequence1>;
5 n$ o! }, Z7 p7 g S until <condition>;
* u5 G! J7 o2 C: | (4) for <condition> to <condition> loop
3 D6 _/ c, M* s4 W- X: N <statement sequence1>;
* C ?- G) I) M0 \ ^" l. x# S next;
( D+ P0 C5 M5 m, k! g9 R( R; a3中断语句' u" x3 Q+ m, M8 @7 V
waituntil <condition> prio <integer expression>;; m5 j. H/ W# i% q) C: T/ d
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; b& e" ^, ?- V2 d7 z# n# Z8 H* u以上为常用的函数!
) ?! g& n% N5 b0 y4 W" B" O! _还有很多,如有需要我把资料发到你邮箱里 ! I4 f9 e. g6 i k
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