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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
& q' R) C4 Y# `6 ]# y if <condition> then
" w& F& {+ a8 s( P" \9 a8 t/ d6 o <statement sequence1>;" ~8 A8 W- S9 Z5 L$ Z; u2 D
elseif <condition> then
+ {2 e( X5 |- ~( r9 S2 r8 I <statement sequence2>;5 n- E/ |$ N( b: H$ _
else & `- k; ~' ?& z: t- s
<statement sequence3>;( C4 ^$ @5 f2 L4 x; N* a& O
end;
0 H8 a1 b+ m: e8 S2 p; N如果分支比较多,用:4 O3 Y9 \. K. m( y7 @% u
inspect <expression>$ {" R6 N% G( k, Q
when <constant_list> then
- m" K% e8 X6 C. s2 E <statement sequence1>;) q/ M, ~/ ^5 J# Y- e
when <constant_list> then
0 ~$ g& U! m7 t5 g <statement sequence2>;
& U* _0 Z9 }0 M8 u; a" \! { ...: z9 `7 ?1 B3 ^5 q4 {
else6 ~6 ?3 y ^) |2 y1 `
<statement sequence3>;
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2循环语句0 E4 {$ w r( M% U
(1) from <statement sequence1>
* [/ B" b E7 _7 Y; P until <condition> loop
; o( P0 \; @9 O. S5 s! z6 D <statement sequence2>;
$ h1 r0 n7 r0 s' [' Q end;
6 W, P9 }1 A* t) ]) U (2) while <condition> loop
, C9 q7 X/ h; |" c% B9 |9 }4 U <statement sequence1>;
! C( h% ]7 E; u. C' ]- m2 u4 u end;6 [% @2 B4 [& @: ?5 k U& i7 i
(3) repeat / j# U! B+ ^4 G! o) U# b$ P/ [5 }
<statement sequence1>;" {5 a8 S4 i5 |
until <condition>;7 ]3 @( y+ c" n8 q4 N6 y8 f$ O
(4) for <condition> to <condition> loop& w- ]* H! D( i" s0 \0 B( |
<statement sequence1>;
' ^, a& q& q4 t3 f8 z7 O next;' I# c8 r! B7 Q" _# v% @ f
3中断语句
( T4 _. S$ a) x waituntil <condition> prio <integer expression>;
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以上为常用的函数!& g7 X& W( J7 u3 d0 ]7 v0 I/ j
还有很多,如有需要我把资料发到你邮箱里 $ _) D, ] h. v
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