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发表于 2012-11-13 08:48:12
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1判断语句
9 U; B" ?4 m" ^% u5 [& s4 t4 R" W if <condition> then
8 e n; v: Q+ j6 l3 _ <statement sequence1>;
0 `! F' Z6 v4 U% ?+ M! M; ?* C elseif <condition> then! N5 o: E) o2 R" U6 i2 m
<statement sequence2>;, ~1 F. ]4 L- @- R6 ^- m* Q
else
0 u% r* V' [3 g& d+ ]) |3 T <statement sequence3>; f5 b+ D# Z k m
end;6 \7 J# b0 w5 m3 Q O$ m+ r, Q# z: c: B
如果分支比较多，用：
' Q# @4 x1 }$ [' j I8 @# P( p inspect <expression>
) r3 M. Y% Y G J2 v9 Q when <constant_list> then) c+ A! Z: m$ [1 q8 ]5 A
<statement sequence1>;, b2 w4 K4 T: ?6 Q" M8 M
when <constant_list> then
- E. {8 A6 f7 ]( a! m <statement sequence2>;) j& q! m1 h5 Q" d0 c
...( ], F$ s9 X; a: \ E- r0 T3 C
else1 V; s+ u7 g3 j
<statement sequence3>;" B$ m' ^* p+ \5 p" C
end;3 S& X% b' p0 h n. \: b
5 e5 b% M2 o+ P+ }* a0 W+ @2循环语句; M. z) ^6 K5 p+ K
(1) from <statement sequence1>
+ f! n. R; M+ g! {. v until <condition> loop
- d3 K) _' C) Z+ I; j <statement sequence2>;/ r7 W/ X5 S6 s$ \; U
end;
3 d1 ?4 V! b( R8 X% u: ~5 C (2) while <condition> loop) M3 _( U# t$ x/ _. u8 V% F: ?
<statement sequence1>;+ F0 ]$ q! G2 w' X: [0 G/ ^
end;
7 e E0 J6 `/ P% } (3) repeat
$ @; o- X, U3 c! V; M+ M <statement sequence1>;: n* Y* @* ?; N7 s7 e
until <condition>;( P/ x q4 N9 V; V7 n
(4) for <condition> to <condition> loop
; d* P+ L* _4 r s% b <statement sequence1>;/ w3 i; I1 I$ T% r+ W2 D
next;4 z/ P P0 ~0 I6 l6 `( d$ x
3中断语句
2 k# H! t8 H) U+ V) x5 b4 S2 l* X waituntil <condition> prio <integer expression>;
) Y5 o; ~" I, c Y9 [# v
+ f4 y5 T( {; M$ ^# Z" ?: x, b+ Y1 @6 w9 d' M% q
以上为常用的函数！+ D Q; ~1 b4 f* r* w
还有很多，如有需要我把资料发到你邮箱里 & D: D. Q+ X" r4 F, Y. @& R
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