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发表于 2012-11-13 08:48:12
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1判断语句& |; I" K) B" m Q
if <condition> then1 a, Y2 ?: C( `% C6 m/ \0 m
<statement sequence1>;
! f( k9 g) U( d elseif <condition> then
% q5 K: V# ^- t B <statement sequence2>;
$ F0 h/ ~' \; g" r else * G# b/ Y i- v0 ^( h, R9 I
<statement sequence3>;
' Z8 w4 p- m* A- k1 z$ E4 l end;
7 [8 t; J. N* _" U& q: X- `' G如果分支比较多,用:* N/ b6 |) J6 n N% _0 O
inspect <expression>
& p! f2 w/ J9 L. M' ?: | when <constant_list> then* M, |. A( n4 ^1 f. R8 I% s
<statement sequence1>;
& e9 Y+ {' Q' E/ u when <constant_list> then
- H) v l2 D" c3 n1 {. n$ t: c8 L <statement sequence2>;
; R' b/ @2 Q9 i' c4 M ...: _0 v' F0 D; X+ ~' }& L
else
5 C6 }7 ]" f* g, z+ q4 X9 p' | <statement sequence3>;
, k' [# l, P Z" }2 w* {end;
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0 A3 l. S3 d9 n1 W1 W- {2循环语句; t( _* e3 ^, [. L* u c" v$ i2 \3 U
(1) from <statement sequence1>- P3 O& ]) ]; _2 |' p
until <condition> loop
R' v; ^5 E% e2 O7 J+ y# p <statement sequence2>;
. ]9 e) P+ C; B: z7 H end;
' Q. h# f1 Q4 r- F2 P1 r (2) while <condition> loop
, H3 s+ i w; V9 f" E- { <statement sequence1>;
5 J' E" k/ C5 t9 A/ Y | end;
, Q" }( |, T) h" @+ Q& h3 R (3) repeat . k) u7 e# c( R) N5 Q
<statement sequence1>;5 }7 i* }0 N7 f( _* w/ [; e, y! h* R d; D
until <condition>;7 c9 {' F1 N/ e3 S8 g+ O Q( H! F
(4) for <condition> to <condition> loop+ P7 H2 z2 r* ]" J
<statement sequence1>;
+ l9 S) q, r9 _- i! v next;
S1 j( d# U6 |9 k& ~3 X3中断语句% K$ l8 D9 |) P4 H3 u8 j& Z
waituntil <condition> prio <integer expression>;; G. ~" O% B2 H0 A
) [" T& ]. @# w
" P2 ]) E4 L, c2 v3 @以上为常用的函数!
" f) `& P; r& L; n! O2 |9 X还有很多,如有需要我把资料发到你邮箱里
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+ [( D4 h8 {; Z V1 l! I5 \! S0 h6 ]8 ^% y
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