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发表于 2012-11-13 08:48:12
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1判断语句
4 G O9 _. X" M, i if <condition> then
( I: {7 N2 E, a# {% @3 _ <statement sequence1>;
7 b W* \7 v. e elseif <condition> then
6 X( c# ~8 d. k/ _# E3 ?( J <statement sequence2>;
7 Z" ~7 |, u3 e" [ else
* k% f# k) Y$ P% Q0 [+ W) X% y; q/ t <statement sequence3>;
; ?, E: t9 s q) \4 |( X% d end;' F9 N! y& e' h
如果分支比较多，用：
! h0 V# V7 K/ M inspect <expression>
/ j' f! e5 a3 {) C when <constant_list> then8 ?8 q _. J" e3 A1 N
<statement sequence1>;* a+ J9 V! [& Q1 V3 y) J
when <constant_list> then
( Y' S& H. I% ?# U <statement sequence2>;
7 X6 B; T7 ~5 r( P2 L/ ~ ...
5 _: V9 D7 ~+ |: C: z/ a8 K else
g. E% q5 \ r( {" N+ x <statement sequence3>;
0 ~( P0 x7 S4 O: U+ cend;
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2循环语句. j7 l' R: x" t. Z- |& X; X
(1) from <statement sequence1>
" z7 V9 C( b# `2 }% _ until <condition> loop; c. q. y9 O. L% H q
<statement sequence2>;: ~! I# ]; o4 e- A! E
end;% ]' E, r @, e
(2) while <condition> loop
+ t( f. L/ k. n& R( \& _. ^ q <statement sequence1>;
7 Q6 S |( m) b: q' r _ end;9 z. Z* h, ]/ a, j
(3) repeat ; w$ @: K8 `1 {7 W
<statement sequence1>;/ C' n5 d% Q/ K+ { Q7 t, ?
until <condition>;
4 j& h& e% n9 n+ d (4) for <condition> to <condition> loop( k! Q$ \+ d4 Y! o' x
<statement sequence1>;
" F" u1 v2 v8 D3 y" Z next;
! Q% z5 R* y) n3 f1 P2 C0 O( A3中断语句) L* g- W! J' c
waituntil <condition> prio <integer expression>;
7 P% L; p+ c. m# O \8 o+ h/ A5 |% M. J
2 N9 b3 n/ c" N* i8 d t
4 {5 Q, p' B5 X& e& R9 g$ p以上为常用的函数！* d% A0 A: @5 A" r/ q
还有很多，如有需要我把资料发到你邮箱里 ( n- q" W5 f8 I/ q( P' v7 M; V
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* R) m/ P$ u. E" A( e- ^/ Q
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