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发表于 2012-11-13 08:48:12
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1判断语句3 x4 r7 T O% \/ v( V
if <condition> then( `7 j* q. b# b H' x7 j8 G! J' A1 q
<statement sequence1>;
4 E, _% s$ C4 U. o7 Y elseif <condition> then
' r7 O% Z+ c2 e, {6 c8 U <statement sequence2>; H7 v" N* o: W% J6 X
else
f/ |" P5 d2 S% R" k7 p4 I <statement sequence3>;$ V* S6 b9 [1 Y( U7 y1 T
end;
" a4 S1 S$ f- p' u如果分支比较多，用：
. r& n9 x; m" n/ | inspect <expression>
' p; l3 ]! o& E( t when <constant_list> then" ]7 N" t7 r1 D. v
<statement sequence1>;
* m$ U2 |$ y1 T9 `; M$ @, q when <constant_list> then/ A4 K' V! J4 P/ d- Y
<statement sequence2>;
5 d( T/ ~3 Q+ t1 X r ...
- \* d. ^4 x( V2 G1 s. b6 z else
) K! g# `! q( M$ Q9 b* e9 c; y <statement sequence3>;
; n) W: a- o5 k' d1 y8 M: a6 ^end;3 i \! y) n7 M Y9 l9 w
, T1 `- s/ d8 e- |1 C2循环语句
, a+ T8 i% x! [9 {9 n5 d (1) from <statement sequence1>
8 d' }( I: c, {6 i( m. q: i until <condition> loop8 n: m" z) t! k* ?9 |0 N
<statement sequence2>;
c% a7 q. t* v4 p end;
4 K' T4 s% u1 {* e8 f% q (2) while <condition> loop: ^" ^8 z2 @7 P* q8 ]- N
<statement sequence1>;* d' N8 K6 R# _; q7 Z( X
end;" h$ Z& S& x8 c, `5 N G7 X
(3) repeat , ~ q" P) h: u9 N _: O
<statement sequence1>;5 e: U* J" H' ?0 R" O
until <condition>;
8 h6 L" e! S6 Z& r. J (4) for <condition> to <condition> loop
2 W% e& a7 ^- M2 D# v <statement sequence1>;
6 k0 S4 |; }' W: z7 U+ k next;0 F3 \1 i( C: e& u# e/ O9 u
3中断语句2 _8 Y$ G4 M9 s( j5 F1 Z% H
waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 a8 w R ^0 D1 ^6 Z& f* w
还有很多，如有需要我把资料发到你邮箱里 & R- U5 `0 g8 R3 S! L5 i; N4 r
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