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发表于 2012-11-13 08:48:12
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1判断语句3 }4 c% u, y$ I& s5 t, I
if <condition> then5 y# V- K& g% p( W0 B5 y3 E
<statement sequence1>;
9 ~1 Z! P9 h* T) O. [8 l" Z elseif <condition> then. B5 ?( k& Q' A. K1 u& {& p
<statement sequence2>;; X# O L/ f4 G5 w1 b/ h0 U
else # H% A t* Z9 k$ G# ]2 H8 D
<statement sequence3>;' C0 r, B: L+ g1 T" w
end;
) B) V* W6 l; e0 n如果分支比较多,用:& W# F! V {" ]+ k) Q
inspect <expression>: q$ g$ r8 [+ n5 T, \
when <constant_list> then
4 }9 X+ i }( c- v0 f1 e3 @ <statement sequence1>;9 q" b* e& \+ E
when <constant_list> then F1 c% H" L: b( V. `# C- O3 D
<statement sequence2>;9 e$ s1 k* h0 I( ?+ P! \
...7 [3 K0 e" |: b7 h2 ]0 [5 h
else# Y/ B" {* I! N v" c
<statement sequence3>;
/ Z3 l' N: `7 s2 R; R- w$ O" h& \end;, C$ h0 D1 j5 E# e
4 e. e' B: N5 K6 {$ I6 n, U& F, x2循环语句
f5 {# p& Q: S# l$ [, K (1) from <statement sequence1>- H' D) @* k) I" e! \5 c
until <condition> loop
1 Y& ]0 Y$ {3 W$ h <statement sequence2>;
) w& F$ d5 S1 Z7 I2 ? end;
% d) ~8 d0 U8 \- m& V (2) while <condition> loop
; M( D! A% w; O; C. {; m <statement sequence1>;2 p3 ?! h0 |' A" d8 R5 }
end;; [, y* a, P# o
(3) repeat 9 c$ V' T1 \" p1 d, \: j
<statement sequence1>;* l5 l% m- L( u# v' R, r
until <condition>;( m! G7 y- {) v9 C8 g. i7 D0 n7 F9 h
(4) for <condition> to <condition> loop
- z* _% g% M) v: p5 C) `5 z8 y$ y <statement sequence1>;
0 R9 H" Z1 a/ Y; d2 p next;
$ a) h$ ]8 ~9 w) D- `3中断语句1 K$ r6 U+ o6 A [( k' B6 @, x
waituntil <condition> prio <integer expression>;+ E8 i9 n4 ^& j g
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以上为常用的函数!+ a7 E. |8 K8 G. |7 P
还有很多,如有需要我把资料发到你邮箱里 2 g& J0 ~, `: M {' i W
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