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发表于 2012-11-13 08:48:12
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1判断语句. e5 O; U% s3 f% n2 V
if <condition> then* s p k$ M8 C' V- q
<statement sequence1>;6 O+ O6 j- Z1 h- e2 M) R4 J
elseif <condition> then# h3 d2 [8 l8 m I5 W
<statement sequence2>;
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<statement sequence3>;. W7 x+ @6 ~* f# Y/ G( O) r1 [
end;
E z5 h& c& k& S" d0 b& r4 s如果分支比较多,用:2 A) O( u+ d4 j) \
inspect <expression>
5 M- U4 F- }! \$ ^+ c% K' e# A when <constant_list> then
! i( ]' {6 e' B8 _9 P0 ~+ Y7 |8 H4 } <statement sequence1>;$ l5 I. e0 {" Q" V
when <constant_list> then, }. L& ^ c3 I( A
<statement sequence2>;# k# }/ T* o; Y8 G2 x4 e
...
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<statement sequence3>;
P4 k1 ~# r. H1 b9 {( Aend;
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2循环语句/ d0 Z( X) q8 W, {6 F/ b
(1) from <statement sequence1>$ ~- x! }7 G8 W- _" h$ y& j
until <condition> loop
, k o+ E; T9 P% ^9 ~( e% f# w <statement sequence2>;
q' v. w1 y- i0 ~9 m end;
' K, I4 w5 s! w6 S0 `6 W3 N (2) while <condition> loop7 r+ T9 B" _% R+ z
<statement sequence1>;5 @3 b3 a7 Z1 ?
end;4 q; ?# R2 ] J' c7 ^
(3) repeat / _1 r! A1 p s5 [, L
<statement sequence1>;! T1 L) O+ m2 G5 P& k& z
until <condition>;
( R9 f8 Y* m/ B3 q0 Y' n (4) for <condition> to <condition> loop
' q! @3 w5 w5 X. D0 _. L <statement sequence1>;3 C$ q2 h( F5 G8 M- t/ }
next;
. w; [9 R1 u; q! D9 ]- q+ d3中断语句
, \7 R/ K/ v$ D$ L waituntil <condition> prio <integer expression>;0 l7 m5 @% c- O" O, P3 S
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. j6 q3 X, Z, m6 g; z4 @. [以上为常用的函数!# t( \4 v* \" q) x8 \
还有很多,如有需要我把资料发到你邮箱里 3 P- N C1 h2 _8 [; q3 m/ E) l; p
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