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发表于 2012-11-13 08:48:12
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1判断语句 t2 L4 W! h W) h
if <condition> then& V, f/ k( w( b$ @. Q% |" }
<statement sequence1>;* D- r( M% S+ h
elseif <condition> then
6 n+ o, I d! h5 B. P( u <statement sequence2>;
8 c) o" l" |. l' L: w" l else
/ N4 y& X% l9 N6 ^, |" V" n; v <statement sequence3>;
0 Q% T+ R p, Z1 @ end;
% h( x- T" J! X* W# Q) r4 A4 R如果分支比较多，用：
% d9 d+ H+ v5 o; g2 y4 d inspect <expression>9 u. }) Q0 b2 @6 L/ Y# s
when <constant_list> then
- v' }2 X- W% S& b } <statement sequence1>;
l' ~; y$ _ o) L* z+ ? when <constant_list> then
' N; Z2 [/ v# h8 y6 P- h ^ <statement sequence2>;
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else9 e, v1 r2 K$ {0 Z% S4 g$ U: H6 q
<statement sequence3>;
, \7 x' r1 g$ G3 G0 Z% q# |/ Hend;
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6 ?& N( r; _( M2 o# f5 N2循环语句; _+ ~% ?( w6 q
(1) from <statement sequence1>( r4 ?: B" u; I) H9 `( @1 W
until <condition> loop$ h: r, q" i9 R7 h, P; D& t
<statement sequence2>;
]& \4 M0 V/ y0 O+ L& {% ~) k z end;, O* t; u" N, W7 `( r) W. l( F- b
(2) while <condition> loop% g- q3 S0 q" L! o
<statement sequence1>;
" r9 _9 r# Y$ l7 v. A3 l end;
& T) `- t% n2 N: V: }1 g (3) repeat
: G9 n) J. m& b0 e <statement sequence1>;/ E# H+ R& ?- e3 C Y# U
until <condition>;* Q; ~- K- v. ]7 k2 \# T) {$ }) t2 V
(4) for <condition> to <condition> loop9 W2 ~6 H; T% v& l. D1 i
<statement sequence1>;
8 I% l0 k- {% \/ W8 H$ e1 Y next;
7 ^$ u3 Q3 K# S! x3中断语句
5 s& c1 a' S( {* _ waituntil <condition> prio <integer expression>;. C Z3 H) @; l) Y( t1 i# e' {0 A
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! g& q2 @% Y- r6 M/ b以上为常用的函数！
0 C( F3 ~: I; U6 U$ f( |/ I. Y还有很多，如有需要我把资料发到你邮箱里
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