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发表于 2012-11-13 08:48:12
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1判断语句- k" a( Y) L" Z) I* L1 \
if <condition> then
! `: I* ^$ D2 e; f <statement sequence1>;* }( N2 J. s* t/ O {' e& D
elseif <condition> then
" l2 I. ^# X: [2 m% G& N9 H <statement sequence2>;3 O" R' Q/ @) g8 d
else
% W) K0 \& {4 e" V/ K5 X2 z <statement sequence3>;& N' Z4 {' ^2 H t8 N5 |$ l; o* R
end;1 l3 d6 J9 x" ]. i2 y+ Y
如果分支比较多,用: B6 f. Z# n& U3 q: |
inspect <expression>4 F1 W8 b8 g) O6 g$ [
when <constant_list> then
9 b! h* ^' R9 Q* l/ j# r <statement sequence1>;2 ~3 Z: P0 d5 z: R; w8 k* k
when <constant_list> then2 W6 O% f5 }7 ^8 _5 H
<statement sequence2>;
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else7 u' q- Z- r, ~& z, }0 @- ]
<statement sequence3>;
. a; t: U# o$ R0 F; c: Gend;" p1 Z m t6 @; U
- Y5 y! B# W7 w: E* y7 z2循环语句% d7 K* K6 w/ b3 U' A& j+ o
(1) from <statement sequence1>9 H* x5 D$ z7 B1 x" J+ s
until <condition> loop
) n* C' ^& }( |/ ` <statement sequence2>;* @- x# k- a% k+ V& Z2 |6 g
end;
. T+ Z( {3 W, ~( k9 z( e8 A8 K* g7 K (2) while <condition> loop2 M$ T& G* h) v5 D0 ]
<statement sequence1>;1 T' v8 P1 E" [/ @3 D8 E* s
end;
Y) ]6 A$ ?3 t% ] (3) repeat " `5 Y; j5 p2 d$ s) K6 w1 w
<statement sequence1>;* m* p; A. x3 l! K! a6 i
until <condition>; w4 X1 y0 ^' W; g. P
(4) for <condition> to <condition> loop! V$ E( Q, O4 J+ C9 H6 G4 m
<statement sequence1>;
* f5 r9 j6 b+ ]% O/ ~$ P: y, W. p next;. l& u3 F5 O y3 b# e
3中断语句
! c2 t7 ~, K! r/ v waituntil <condition> prio <integer expression>;3 O0 k( f/ z( y$ |+ u/ A
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以上为常用的函数!" R7 A" B, Z: A' a
还有很多,如有需要我把资料发到你邮箱里
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