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发表于 2012-11-13 08:48:12
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1判断语句, } H( Y4 B) F( r
if <condition> then. r. a3 e8 {9 h! G2 @) y& g% Z" s: W
<statement sequence1>;( f+ t0 ?6 L/ S2 O& Y
elseif <condition> then
/ \5 Q9 W% k; O$ } <statement sequence2>;2 {9 h/ [) D3 I
else
5 |' t* `. Q5 [ <statement sequence3>;* ~/ A6 J* }' V# X8 P: b% h
end;7 \5 X0 _' S7 e! g% }8 B
如果分支比较多，用：# p$ v+ R% o1 _( e; z5 V
inspect <expression>( {7 E* M |5 F) g1 j; \9 c
when <constant_list> then
+ y0 r& V5 M% U' t- C <statement sequence1>;
: D5 x: N. N3 n' w/ _3 C, S when <constant_list> then: t1 i. \7 y2 g* G+ x/ U, e
<statement sequence2>;
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else9 A0 z* t) ]) D
<statement sequence3>;
* q% K8 U# h( j0 M' j+ H1 ]end;
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2循环语句
8 h5 \, D! Z! u% R! p! M) `$ D4 ^ (1) from <statement sequence1>) M+ i6 J' O7 j( h( D) J4 k9 ]/ G8 s, M
until <condition> loop
2 l# X2 a; \* i <statement sequence2>;
5 ^/ _9 t- j# \, K. @ end;
4 V7 h4 D; d8 q6 e* g7 t (2) while <condition> loop% C9 M% C/ _8 L* L7 r+ P
<statement sequence1>;
7 s# E! l2 d, O% X' d end;/ | ?: n. j/ s, V" }
(3) repeat
8 }" |+ G+ L @( z T! M <statement sequence1>;
7 L! b. O& V+ Z" `) W$ E until <condition>;: C' ?, v4 d* V3 S" k2 t
(4) for <condition> to <condition> loop# h/ u+ L- Z* r, Q# b
<statement sequence1>;1 b, W% G' g( x3 r9 }
next;
L( `$ w" V8 u: }3中断语句! n0 a( } j" D$ B$ M
waituntil <condition> prio <integer expression>;' k* c7 g. l5 j+ R: S# J
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1 Q3 n( {7 J. _以上为常用的函数！0 O* u' n9 m. ~3 ^3 L& D
还有很多，如有需要我把资料发到你邮箱里 : J6 b) i7 v: }0 P/ M
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