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发表于 2012-11-13 08:48:12
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1判断语句
. S9 |( h4 l0 u! e* E if <condition> then* `- T" o x- T
<statement sequence1>;
/ m$ ?" ?7 @8 L% x/ N3 P; M elseif <condition> then
( i8 H: E- @6 s! V" V N/ M* k <statement sequence2>;
. O4 D, D# [. `0 L" I: ~3 E else
* _ O/ Q+ X; a+ _4 P <statement sequence3>;0 n% A: o3 t4 c5 ^, ?- n
end;: G9 \" t2 H- O t l/ v
如果分支比较多,用: o k0 g ^7 {8 s; H2 L/ }: D8 K& W
inspect <expression>
" b! X+ f9 z, e, N) s when <constant_list> then
! d$ }2 P1 U6 i <statement sequence1>;+ K4 E8 k8 g. b9 Z$ K' f1 C
when <constant_list> then
% `- z6 g1 ]: k/ q* S <statement sequence2>;2 h7 d6 U' |" w- Y3 r5 l1 e# [; _$ L
...
+ V4 _. |5 J, P# ]2 j else
) R, n$ \! j* f, ^6 Y Z, s5 K0 H <statement sequence3>;
v" e. \1 m3 O; {0 Dend;5 |& h5 _/ Q1 X9 A" M6 x
5 t+ \, m" G; D, z2循环语句
, L+ n2 n! K2 X$ j# ~/ s8 T( y5 f (1) from <statement sequence1>
% \3 C5 O4 Z0 T& t, @: ] until <condition> loop9 C" ^7 [/ _! Z5 n' O# ]
<statement sequence2>;
6 @& s& Z, I" P+ X1 R! o8 L end;, q; m4 |/ ]! A# j* {% j
(2) while <condition> loop: ^6 R9 y) F, ?- Q$ W& L3 B
<statement sequence1>;8 M. f: G) S/ y* S1 X
end;
* C0 s" i+ `! N6 e' W1 Y! q/ z (3) repeat 0 Y0 I. O1 ]+ ~6 W7 _0 ]
<statement sequence1>;
8 f; M' H# {! P9 }, C; z( t$ o until <condition>;
* ]0 H! z4 ~. g+ W% D (4) for <condition> to <condition> loop4 ~0 `, _# y% e
<statement sequence1>;& J. Z0 u1 J0 C2 ^, \
next;# F& C4 W/ O3 S" b( g
3中断语句8 T* j/ Z! l, A
waituntil <condition> prio <integer expression>;
' `- \8 ]9 x/ v7 p! A2 _! j
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R5 A* n4 y. I以上为常用的函数!& y+ e/ ]7 u. A3 t
还有很多,如有需要我把资料发到你邮箱里
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