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发表于 2012-11-13 08:48:12
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1判断语句
- R; C' @6 k: l# M8 z: W if <condition> then$ l, U# V/ U; @' ?$ c4 O
<statement sequence1>;
. l$ o8 N% y! M: y+ o9 g elseif <condition> then
, t$ d$ U: x% j' ~% B' H h N <statement sequence2>;
$ A' T3 D4 j2 A9 o' J* O# G else ' K: S& ^2 M2 S1 z
<statement sequence3>;
/ O, d$ t# ^+ L6 b* y& c end;. b1 n( o d4 q! v! M
如果分支比较多，用：
% Z, H. h1 w; L# g% i% }( m4 E inspect <expression>$ x6 [1 R( Q; a4 M3 |
when <constant_list> then
; i7 e; F, [1 Y) K! a4 q8 U <statement sequence1>;1 W$ m. L8 z; `
when <constant_list> then
: `- U, S; V+ c9 W6 X- a( i# l3 B& w <statement sequence2>;
$ ]! Q' X" k+ _2 L! m# Z ...
: C& {# R$ }; w else
5 x3 E1 ^: A# Z" z X <statement sequence3>;( c. Q/ Z: Y# J1 }: v
end;8 w. m- C* r g: D$ Q
* i# }( M) O X2 t. r/ i, v2循环语句
) ?% G3 q! F/ b4 Z$ X+ t# Q7 Q (1) from <statement sequence1>
* U. v. K+ U. z- M) I0 _' t until <condition> loop3 x- p3 t& R# V4 L1 t
<statement sequence2>;) y2 A+ }2 g5 q0 }
end;1 u7 t4 u/ j1 k" A; B; ~( d( q
(2) while <condition> loop
* f! h4 @; P' ] <statement sequence1>;
4 C. f! b4 s; z end;
' q7 ?7 |8 x+ b6 C, a5 { (3) repeat ( h) _/ O+ _: W/ Y
<statement sequence1>;! W, p- m) r) J/ w- A
until <condition>;
9 l3 W& W* D7 C; _9 n (4) for <condition> to <condition> loop
# H! s: h+ h% E! n3 ` <statement sequence1>; @. N+ r' {# d {
next;1 P% d! t0 C" C! i: J: x
3中断语句0 P3 J. M0 g- [4 K0 u
waituntil <condition> prio <integer expression>;+ w |9 B, q6 P" a# _- [6 I
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以上为常用的函数！8 S3 ?" P4 p% {* A
还有很多，如有需要我把资料发到你邮箱里 - e" |7 h( `5 g: `, E
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