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发表于 2012-11-13 08:48:12
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1判断语句0 t' H) h: O% g/ o9 K
if <condition> then8 w* _3 l- k# X5 I" ~6 V
<statement sequence1>;. c, P3 ^ L! b% C- h
elseif <condition> then
7 I8 _4 U0 e" {5 `8 A <statement sequence2>;
3 K& N* g+ ]0 v. Y, j7 }/ F else
# a0 o! J- B! p. P <statement sequence3>;
f, H. f' |& _2 u; t8 G end;
* d n" T7 s, T6 h' K如果分支比较多，用：7 s3 y' y0 @4 e$ C6 v" _
inspect <expression>. c0 L! c2 @9 x9 T6 l) b! D
when <constant_list> then+ z/ q/ K( r7 K. T6 l0 {# { h
<statement sequence1>;
" S) }4 N3 |' j when <constant_list> then) b& |; @8 N2 K6 ?: A
<statement sequence2>;0 W1 I1 m: p. f: o
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else
2 c, ?0 e* |4 i( M( b. V5 J0 D <statement sequence3>;
2 V% @$ ~& r& H) C$ E+ j" Uend;6 k. m( g! l. Q2 v' }* ]
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2循环语句
% N E* p* C. i) R0 ^" @: ]6 @ (1) from <statement sequence1>
i9 _1 O! y7 e' c until <condition> loop4 N' C; T1 A1 y" A! G4 g/ ?
<statement sequence2>;% J' c; O7 R# T# c: ^2 L
end;
1 z" Y3 w" y) ~% N (2) while <condition> loop
: Z; h$ J6 ?/ a- b# W <statement sequence1>;
5 V9 i# F) m. u end;5 u/ a6 _ c# s6 L
(3) repeat & \" C; W- M; K' H; C" d; F+ Z
<statement sequence1>;* i' ?5 D/ [: p2 \9 k
until <condition>;! Y$ J9 o0 b" \& r$ j
(4) for <condition> to <condition> loop
" l6 J6 e: v( S) l8 @) h <statement sequence1>;, J9 d& e7 i9 Y9 S
next;! p/ X2 n: h1 b9 j1 v! ?
3中断语句% D) D9 E4 W3 Q2 p( f; G2 T9 J
waituntil <condition> prio <integer expression>;
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以上为常用的函数！( k6 k5 d' C- o6 ` P. d) |
还有很多，如有需要我把资料发到你邮箱里 + D+ _3 B# ?8 T! ^+ M
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