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发表于 2012-11-13 08:48:12
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1判断语句
) E4 ^; n" d6 c8 b if <condition> then
0 U3 D8 g8 J+ H4 s/ c! K <statement sequence1>;
! \# P6 Y, ^ b# W( d: k elseif <condition> then' c2 |5 l9 A0 s, |: p1 O
<statement sequence2>;* ]6 ]4 F- Y( E5 v
else 2 _' Z, q& t4 f/ v! B! Y) C9 Z
<statement sequence3>;5 W1 Z9 {$ T$ T$ k. ?$ T9 m0 m6 V
end;' S1 Q( C- q# G
如果分支比较多，用：7 M D1 \4 _, Y, h& p: B k
inspect <expression>
. _& E. K: r! I when <constant_list> then
: ]/ o+ }- a3 @6 C8 Y3 u+ b7 ` <statement sequence1>;
* t" q$ i$ \' ^0 L when <constant_list> then, p' h% c t. p
<statement sequence2>;
3 h2 F; a( U3 q& W3 K+ \6 | ...
+ G. o, G& a2 X3 u; j' q9 y- Y else
7 t, G. O! z4 z <statement sequence3>;7 v. ^3 K% e0 G
end;
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4 F/ n. x* p: A1 `& ~: P* h e2循环语句- A f4 l: V* K m4 C
(1) from <statement sequence1>+ O7 G: R# u- k5 m3 ~$ V
until <condition> loop' m( ?6 m2 k0 w1 m0 ]+ P
<statement sequence2>;9 |3 T. V3 Y0 `; V% k
end;
7 D8 Q" }8 ^; D5 F* b (2) while <condition> loop
* V& a5 b) ?( E1 U; D <statement sequence1>;" U+ v% [/ L. \4 D+ i/ o; o7 k
end;) Q( }3 J0 u5 U k3 W
(3) repeat
. ^1 o$ ^9 K4 ]- |" P, Y! b6 L <statement sequence1>;, }6 ]. q+ ?' p; ~6 l. s" Y
until <condition>;
G$ J; K" F9 P3 C: @6 R3 n! J (4) for <condition> to <condition> loop
- h0 z( S. X' R- D7 ~- v- ]; X; q <statement sequence1>; N, a# r5 i$ J( {* g8 w
next;
, [* l( d5 D; w1 w v8 u" n' N3中断语句$ _; v m V, z2 |4 @7 q. Z/ G
waituntil <condition> prio <integer expression>;, p, F+ d7 d- s2 y$ X- M) j% P
9 b8 O$ ]3 @1 a. x+ C
- x+ d& G' T- Y9 D' F; Z, u' ]2 U以上为常用的函数！# D' @; C* T0 l( e
还有很多，如有需要我把资料发到你邮箱里
W. }9 l n6 ^7 H0 [6 z' d( \8 K0 Y& Y, w# h' M' s5 j6 {
0 ?$ {( N" S* `& r8 I( J5 k
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1 p# F3 N) S- i C
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