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发表于 2012-11-13 08:48:12
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1判断语句+ J, h1 [, Q0 N$ D; C. x
if <condition> then
% |2 F, m! `) y' L' B8 F <statement sequence1>;
1 G% y1 O) j) _6 s8 w elseif <condition> then+ k$ ^5 f- S0 L4 d" H8 V/ c
<statement sequence2>;! u( u( P" j! n3 v8 L
else ( L; U5 Y; A) N& y. p5 ]
<statement sequence3>;
8 e P- ]& B( E* G" I c end;
; F) Q. y7 _+ }) {! P- d如果分支比较多，用：6 W) d# H7 }! L: ^8 `+ |6 L/ ]
inspect <expression>
9 x3 i" k' g; m0 z$ Y( y0 g9 T when <constant_list> then7 B) Y/ P/ ^+ K& M
<statement sequence1>;
k2 [# r- d6 k; y* n' k- b when <constant_list> then
' x7 J( L1 G6 m" ? <statement sequence2>; r0 O* _6 \! W2 h
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else+ G+ I3 U5 n# ^; Q% v% A
<statement sequence3>;1 \; Q6 ^! ~+ ?$ r z
end;
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. r% A9 C* ]8 n7 K, h W2循环语句/ K8 K% j s) Q# H! v. m
(1) from <statement sequence1>2 {3 `' Y3 s! ~# Z! ~
until <condition> loop
2 f$ z/ v- Z2 {# b <statement sequence2>;" n, I+ t( @( b( M6 V# T- |
end;4 |/ w. b% e; e
(2) while <condition> loop
9 T6 g$ o5 V2 k( J# L+ n7 I <statement sequence1>;7 ]* {& v+ j& u1 N& e
end;! m2 b, u3 ?( T1 ?4 W
(3) repeat
: L9 v1 N7 h' h+ ? |$ c& x <statement sequence1>;
7 K" I& G. l% W; N5 G& q9 ^ until <condition>;
$ \/ L% _# V8 v: v6 s2 M5 ]+ g (4) for <condition> to <condition> loop
# f4 A0 [/ v& k' S <statement sequence1>;
" c- B; u0 G: T0 f- h next;
3 w! l. [; U# E& o$ ^$ c3中断语句
/ U$ {. [6 ]. ?$ ?; v1 q waituntil <condition> prio <integer expression>;
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以上为常用的函数！
6 S4 {2 ?% F9 o0 w# X8 o! Z还有很多，如有需要我把资料发到你邮箱里 + f) m8 D, w5 u* b* i- q3 L
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