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发表于 2012-11-13 08:48:12
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1判断语句 l7 q- \$ A% o/ U/ f9 `& Q
if <condition> then
$ [8 p1 m& W% q, J& ]. c2 `/ O <statement sequence1>;
1 L5 v* U2 K( q+ b- } elseif <condition> then5 @& ~# _. F* w$ e
<statement sequence2>;
3 G$ G* g" \# q else
: f0 i* z& q* \6 G6 u <statement sequence3>;) P5 i- F% A6 }& `/ G( @
end; a4 y1 W4 p& i, ]! ?7 a
如果分支比较多,用:- i& X- D9 o6 w& ?
inspect <expression>6 `6 C/ a' @ ]/ D! M4 |9 x
when <constant_list> then( }2 I, Z# n8 ]0 A$ C5 ?, R
<statement sequence1>;
6 U( W8 E" K# \- q8 C' l5 L when <constant_list> then
3 M, U( O& m/ i7 u Y <statement sequence2>;
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else, Z- R$ G' p* t6 Q( e
<statement sequence3>;' i! u- @9 J0 `' b9 ?0 v, R
end;
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0 y( Z- j$ S$ d \' ], e8 I2循环语句
* A' n2 v6 z, l3 A. }, G. V (1) from <statement sequence1>
% [% \. n4 |, ^& y! c8 @5 q/ e# H until <condition> loop
9 D0 l4 v F( Y! @, ]; z' c <statement sequence2>;
' a2 p4 q2 }8 b5 L: H0 z# S end;
* D8 ^1 k$ D* X (2) while <condition> loop4 B0 _5 ]/ i" f1 {/ B. U0 b4 _" n
<statement sequence1>; w9 s% L! y" n" g2 R
end;! y( F2 I) B6 u* \& c
(3) repeat
! v1 F6 y; t' S3 r! ]( Q5 p# I <statement sequence1>;$ G) P; d& V- i
until <condition>;$ ]+ g5 Y8 ?' g3 g" Q4 O1 h# Q; t
(4) for <condition> to <condition> loop- _* ?1 `# u5 s. h# H4 Y% K- \7 l5 G
<statement sequence1>;
, M$ _: x' @# r- V+ A next;
3 K0 `6 a- R+ x6 U6 l& U4 [$ F3中断语句( B; I8 `) {, j% N0 z0 ^
waituntil <condition> prio <integer expression>;- ]" W& m" E& S# Y
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7 h, Y) z' r$ w! L- w以上为常用的函数!
" l7 F0 Y7 }& ]3 P: x3 {% F3 i还有很多,如有需要我把资料发到你邮箱里
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