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发表于 2012-11-13 08:48:12
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1判断语句5 V+ O: Z4 q- K& h3 ?: Y& u5 g1 R J
if <condition> then& v( }. T2 a0 F t$ p3 |: Z
<statement sequence1>;+ v+ u# Y3 W, r) V7 e! u4 V0 U
elseif <condition> then
3 N1 V1 \1 v) M, F! m% Z. m# p8 j! { <statement sequence2>;
* I, o( N, m3 d( M: N, | else
* t8 Q# |+ u( l- J6 u, [ <statement sequence3>;9 A$ v: z. O& D& W0 |3 X8 m
end;% K5 s$ r9 @# o! d' Q5 a: O; o
如果分支比较多，用：
) k* T3 C; M# g$ [$ T/ U inspect <expression>
$ h( \) y4 j5 e1 C* W- m4 q when <constant_list> then
! T$ ^. k: J+ S6 H# w <statement sequence1>;0 G, ?- x% |1 `3 r D
when <constant_list> then2 p @. j' g& I; U ?
<statement sequence2>;
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else6 h3 q# k& L# W! z3 r( e5 s( B
<statement sequence3>;7 s; B( H: t9 W; l5 \
end;
y5 u; m& i; o
! ]1 `7 C% E+ T6 ^9 c( O$ s3 Q4 C2循环语句
1 ~# I) Z) _* k* v (1) from <statement sequence1>% U }3 M! _# u% R6 h
until <condition> loop
, i; M2 w& g3 Z" j1 { <statement sequence2>;2 u" D& B6 W0 l. w4 w
end;
" z* P, D$ o8 c7 g (2) while <condition> loop# V: M5 Z9 U% m" t$ N7 a) b
<statement sequence1>;. W6 G- X& P6 W, r
end;# R+ q& f( K% z
(3) repeat
* E3 f+ ~. E, V <statement sequence1>;
. S) H7 W5 ~( A5 Z; e R until <condition>;3 U# S( q; s( R1 u. E
(4) for <condition> to <condition> loop
& O" ~8 o* e2 p+ ?$ J, |2 v3 I <statement sequence1>;5 @/ z, [+ g% I2 {3 ~" b
next;: a. ^' v3 ^& i; X1 y
3中断语句! q b% L+ J, a5 \4 i# p' O
waituntil <condition> prio <integer expression>;7 b/ M% h6 L1 D' |! C% O
0 S) _7 d9 b: n
$ D% J; y# ^1 y' B! ^# e: R# P以上为常用的函数！; y5 r7 c5 v! ~- H& n; f) y# w# ^
还有很多，如有需要我把资料发到你邮箱里 # ]$ W! k3 j. i/ X
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