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发表于 2012-11-13 08:48:12
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1判断语句2 u' F5 S9 X2 l5 P
if <condition> then/ L9 s0 x% y& o) y) X; e+ T; O
<statement sequence1>;) l$ m3 a5 J( k. ^: l
elseif <condition> then
1 r1 M6 ]& Z$ T <statement sequence2>;
W$ {7 y" p; @0 d, w else
) X6 a" B% l3 ]7 N1 C9 j4 z <statement sequence3>;+ n) |3 q# V7 e: N
end;
; S5 N" l0 h8 S* C" ?如果分支比较多，用：
8 L- R* r9 ?) p7 X" p inspect <expression>4 f# V' T. O0 X$ _4 J/ `
when <constant_list> then
/ d. d/ V: @" [6 Q- X0 g7 Q <statement sequence1>;- I( k) d% k2 o% H4 e i) F% I/ t# ~
when <constant_list> then3 N% R' X) V) G1 ^: |5 t+ s
<statement sequence2>;+ e. h% v) n7 k( P; A8 S% q, @
...
8 D6 T1 ]. Z0 Y A7 C5 E, { else
( ?: P1 p& a% w <statement sequence3>; c7 H( D2 p' J3 _$ b8 S1 {
end;
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2循环语句
# Q6 U, Z; ^4 k3 V5 A3 }2 X1 g (1) from <statement sequence1>4 m2 v8 g B E/ R7 P
until <condition> loop
, y+ I) u ~, l$ O# B8 ] <statement sequence2>;
8 P# D/ Q' M2 B: V) \* P, K- g9 b* { end;$ ~$ d+ t: r% U
(2) while <condition> loop
) n7 D x* |* M/ d <statement sequence1>;. c8 R# M, T2 |8 P* Z8 |
end;. y$ A+ ^1 `7 ?: i8 A5 n
(3) repeat
$ i- x' v) `$ x% F, ~. J0 L <statement sequence1>;
, A9 A1 t5 t( d& C1 x/ Z until <condition>;7 D, o3 o9 K/ ]2 P
(4) for <condition> to <condition> loop
; G0 A/ h( s: H; Y, |3 T" Z2 ? <statement sequence1>;
0 U3 H+ }0 Z3 X8 E9 `9 n next;
4 T4 z" }4 K8 \" B& l4 [, H) m3中断语句
, U+ X1 I9 H* E, c i waituntil <condition> prio <integer expression>;
& ?4 X* }4 U' ] z2 Z
- z+ L$ [6 e1 {& L* c9 y% t0 i: s: m% w) x. H' }( i: p
以上为常用的函数！
3 z$ y( {, \9 m1 P! L7 u- M# j还有很多，如有需要我把资料发到你邮箱里
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