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发表于 2012-11-13 08:48:12
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1判断语句: a: ]' V7 z5 B" `( w
if <condition> then
8 n$ }, N2 z# t1 \3 _ <statement sequence1>;
- P5 O: s( O0 J: q elseif <condition> then
; {- C; U+ b x <statement sequence2>;. A3 K0 V l# V) x, H2 _
else
7 ~* k* w9 G1 g8 r2 S <statement sequence3>;
$ y- ~" s! x9 R: {2 m' z end;0 ~8 C' U9 b* \# E/ h) \3 {1 u0 e% P
如果分支比较多，用：1 k+ U) l: i, V3 f& C( B5 e# H9 R
inspect <expression>
" k: [, k: g+ v* E) V' n; m when <constant_list> then& C" S+ C4 e9 w: N
<statement sequence1>;' P3 Z7 ]0 P" i( e$ q
when <constant_list> then% { [$ C* e: i1 @0 Q0 U2 N! Y2 ?
<statement sequence2>;5 c, D1 j5 X( b7 f' A4 U0 m6 S) `. A
...2 w5 d, D( {, x& w% g/ _: |
else
/ M; W" X7 {* y, A. S% W <statement sequence3>;" ]) I2 v) U9 r4 `( k- a
end;
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2循环语句1 h: s& y* {. Q0 m. K. |
(1) from <statement sequence1>
. P- R1 C+ P0 S, J1 | until <condition> loop
0 [8 A" ~6 F0 G0 |' e& b <statement sequence2>;
1 x# i: O, n, m6 d; g- u. J4 q end;$ Z. l; S, N( I' g+ [. N) f3 |( K# {# K
(2) while <condition> loop
7 w$ t" O1 `: k <statement sequence1>;
0 ^2 C2 I1 w7 @1 H3 a end;
3 \ j" i# F# d% {0 a1 }4 u (3) repeat ) c, M- F3 d3 O5 \
<statement sequence1>;8 K8 e ?; d" J3 N& O8 X7 T6 `
until <condition>;* I! `$ F: z% y% S ?
(4) for <condition> to <condition> loop9 c6 Y+ [9 |( \& X0 b2 w
<statement sequence1>;
7 @0 Z9 R4 d( Q+ g+ \. ~# ? next;
/ D$ v* ~; [: }6 W; t3中断语句
/ h2 _' s( F3 l waituntil <condition> prio <integer expression>;
+ n0 [0 }6 |- X: M+ e; y8 l. e$ ~, N5 ~" b/ q
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以上为常用的函数！; O( i0 j" {$ S+ B2 U% u8 P; E
还有很多，如有需要我把资料发到你邮箱里 , C" i: v8 K: Y
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