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发表于 2012-11-13 08:48:12
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1判断语句9 L) ~! K, n* v9 M. w/ J
if <condition> then
! h, V0 x- T2 u) P( F/ P( [. { <statement sequence1>;( S6 u: l0 `! f$ C; H9 \
elseif <condition> then+ Z! E* ]: f& h) t) w! p
<statement sequence2>;' X* {+ Q, w4 |% }5 T1 N1 U9 `0 X
else
8 G k/ B9 w* V' ^4 e7 S3 }5 J# Z+ d$ K$ w <statement sequence3>;; V* p& d0 p1 n! q$ W3 ?0 K
end;' f- d5 y) f8 E# X1 N- C, j
如果分支比较多，用：* S: k/ u( ^1 Q$ N. ^
inspect <expression>
2 O: m6 Y/ m4 R, Q3 R, F9 w+ ] when <constant_list> then$ W, T5 |. W. ?: J) _7 j, E8 U( y+ T5 O
<statement sequence1>;5 H3 ^8 v# j5 c7 `7 f
when <constant_list> then
6 O! l, W; Z: L- s/ ^ <statement sequence2>;
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else: V& v" F; x1 ^5 v T& F- V
<statement sequence3>;
E9 ~/ V; `* b9 V& v2 `. _8 Dend;; r, C" D' |/ Z/ E) a' l
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2循环语句
; s% ?3 t: |0 Z" H (1) from <statement sequence1>
6 b K# l' Y6 z( D$ [. y9 D8 [ until <condition> loop
. ~# [' L: [% e <statement sequence2>;
' l' ^) m( T0 F& _* } end;
5 S" ~+ b+ b9 D2 d (2) while <condition> loop. F: x9 n& Y; |( r
<statement sequence1>;
$ g' L$ j4 o" { end;
- b9 k9 l1 J9 l! G5 X (3) repeat
# F3 T+ a/ X, q7 y" k, y1 c3 l- j( z <statement sequence1>;6 L- \, |2 V5 L! e8 Z
until <condition>;
+ n% s$ n$ p& S8 R (4) for <condition> to <condition> loop
0 j: z* y6 d" ?, Q$ w8 h/ f <statement sequence1>;" e5 W! L' p/ Y* Z; S- L1 A) X- e- s1 T; m
next;
( q& o$ Q. S- x0 }- H. f. l3中断语句3 K6 ~+ g# d# a8 f! o
waituntil <condition> prio <integer expression>;
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+ Q! `1 v. g" {9 u
& a( o- a: K9 r. c8 V$ a以上为常用的函数！
3 j' t" o! U6 _9 @& X/ r还有很多，如有需要我把资料发到你邮箱里 6 n) ]9 ?2 y# N) L- ?7 g, t5 }! T
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