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发表于 2012-11-13 08:48:12
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1判断语句
' m* P/ k6 Y* J1 } if <condition> then
: U) P" V" C, L( J <statement sequence1>;) `; h4 T3 t1 H7 n7 B) R) e. L# D7 L
elseif <condition> then
4 ?* t: Q% G3 h: f- N3 R <statement sequence2>;& D* n( D( T! t: [
else
! F% p3 d2 E- M) H; [ <statement sequence3>;
9 f Q* G' E4 e0 X4 e9 J end;
5 Z* F. v. A8 {* K3 C" o如果分支比较多，用：) w, `7 C! ^7 d6 @5 N$ F
inspect <expression>
" d' y# ^% C! r& L2 A when <constant_list> then4 @) D, V+ R# h
<statement sequence1>;/ [1 c: O& s; J" X! J2 J; R
when <constant_list> then
3 i6 \# P& S* k9 E |9 J& W) w <statement sequence2>;! ]2 `+ F) ]: D3 t" k' D% y4 I3 N
...
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<statement sequence3>;7 a+ R! r% S# ?: U) ~9 ^" k+ ?
end;" s8 d) L3 o& N. S
, p. m$ A/ h: N$ A% E( h0 D2循环语句" q& @$ b) {% \7 B/ U: E* G& l
(1) from <statement sequence1>
/ Y+ L6 Z6 b: {) x- {0 [; N until <condition> loop
9 p& Y! R, p& m <statement sequence2>;
& z- G& l( |/ w! b P end;
# v6 J9 Z: _. R. @ (2) while <condition> loop
8 i$ K7 a% p% o1 a: J, |# E <statement sequence1>;
& p; `* l/ ?: h1 Y+ j0 b" e6 | end;
" s$ J+ W' i& u( {. \* y8 S (3) repeat
6 T4 `; ? V; F8 k <statement sequence1>;& L1 S' w2 \1 z* g
until <condition>;1 U0 C/ S5 u" I" j; P6 [& Z
(4) for <condition> to <condition> loop" Z6 h. f5 a! D+ h4 f' B- Y( X) o
<statement sequence1>;
* {7 D5 Y; x) Q* Y next;: ]* h( m9 \" y) ?& h
3中断语句
$ K9 a$ T$ ~/ T; M3 i/ l waituntil <condition> prio <integer expression>;
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3 ~8 |+ X3 `& f( K6 O$ g3 j% k以上为常用的函数！
( h) C% l6 u& X% y6 D7 C. H还有很多，如有需要我把资料发到你邮箱里 4 s& v7 U/ r/ t' k4 E2 S- T9 j
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