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发表于 2012-11-13 08:48:12
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1判断语句! ^: L! F# D w' C8 g; u* n! d- ?
if <condition> then
7 Q. `8 H8 d: U2 [ <statement sequence1>;
L3 G' e% {, K4 _6 q2 g8 H9 E+ p elseif <condition> then. [" z/ Z M6 V, d5 x% y
<statement sequence2>;
& y" m2 l5 f3 o0 s( ?- k# K else
8 y$ T$ R0 }% |+ ` <statement sequence3>;
7 _+ w k& R9 i' z end;2 X) L- s3 w: J% X% o& O$ C
如果分支比较多，用：
8 h6 V) Z: Q) S. [0 z O inspect <expression>
- x6 i2 d( O% @- u. E when <constant_list> then8 G% ]& H' |/ G/ w$ R1 {1 l: [# D
<statement sequence1>;, ~; c% d6 Y" _3 C8 H6 O4 m1 n' {
when <constant_list> then
. v6 R4 Y+ f1 C! T- T" D3 ] <statement sequence2>;# b- ?' `! ]; r7 A" x
...
' O1 s: @: [1 \ V else
V1 {% }5 }8 J; b9 l( m <statement sequence3>;; j/ A" B$ _. `; |& s7 o6 U" K5 Q
end;6 [% c P( Q0 z
9 t& |1 a. C- W2循环语句
( g% G/ n4 e6 e (1) from <statement sequence1>1 O) F, P6 D0 Q' q7 ~" v
until <condition> loop y5 j6 _ N T9 y5 j( x
<statement sequence2>;1 H6 Y5 M3 j* n" I
end;2 S( T, o- h! ?, C
(2) while <condition> loop
- A5 H7 j* z& R3 A$ T% r1 M% l) ] <statement sequence1>;
+ i1 z, | l3 {. ~) G end;9 H0 s" Q$ H8 O) p" g& \: j
(3) repeat 9 \" N% y. C0 n }; z) ~, Q( l; T
<statement sequence1>;. f7 E6 E7 T$ D" C6 s+ A( D
until <condition>;: C& T9 O1 S( Y
(4) for <condition> to <condition> loop( f0 l% `8 ~3 N
<statement sequence1>;
8 }/ U) Q" F! P0 X: T @ next;! x8 ?: q: V7 R d1 w
3中断语句1 u9 }% ?& G: p2 X* O% k, h
waituntil <condition> prio <integer expression>;
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- ^+ m& H; F0 f- G4 L. L以上为常用的函数！
, O5 N% S# k( N2 O5 B. w J还有很多，如有需要我把资料发到你邮箱里 ( ]. r" T6 A! L% }9 \
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