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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句1 U q0 B, |( B* I3 ^9 T% v$ [$ n
if <condition> then' R& c: ?7 ~- ^6 R. `8 _9 L+ k
<statement sequence1>;
8 @0 S8 y( E/ q$ b O8 X6 d# H elseif <condition> then5 q2 v9 d: \3 }
<statement sequence2>;
, e y8 {+ d, [0 } else
5 i) H6 D) k$ }, ~. V3 _) U <statement sequence3>;
! J6 x( _. \& w i end;
# q6 z% h( R. g0 }6 s/ {6 y如果分支比较多，用：
$ j; }* v; N$ b: R& i: C; P inspect <expression>. D3 }; |. w) z
when <constant_list> then
+ L1 F' t U5 L1 n, ^) g <statement sequence1>;) z7 ~) c5 w+ O2 e4 B% Y
when <constant_list> then
7 R; i% M. J0 B' ^5 C! [& S' a <statement sequence2>;! g- t/ H. M! X$ l$ i" b( L
...6 o9 P0 @- p; T. E1 F. O
else: ~& [( w! p* O4 Z8 {( k0 T
<statement sequence3>;
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2循环语句
* q; Y/ e; L( ]( C& M (1) from <statement sequence1>2 _2 R% _. \% l! B6 q
until <condition> loop6 F* Q" M9 |& y3 ?7 o q
<statement sequence2>;
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(2) while <condition> loop
, ?, C: A3 t- y& E3 E, g9 {1 u <statement sequence1>;
) }0 O! W1 ~% @9 ^; w0 I4 h end;' v# |. c0 b$ ~( R, |2 B. M
(3) repeat
. X* K& [+ ^+ v2 H/ M+ J <statement sequence1>;7 z( j5 h. A7 `- O' n- J) G
until <condition>;
: A- v1 j* o3 {7 U (4) for <condition> to <condition> loop: T" p8 b; x0 M
<statement sequence1>;
; I, ^) J8 W0 k' a5 h next;
' ^3 b" ^: R8 m$ k& f$ M6 F3中断语句. ~+ E; L' u, B! L7 a6 _
waituntil <condition> prio <integer expression>;, f$ U. H) [% M7 B" H [, q( w8 ~ O& H
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以上为常用的函数！2 h- N% G1 k. N3 K+ w1 I! x
还有很多，如有需要我把资料发到你邮箱里 ) h! ]6 u% G. b9 ~2 E
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