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发表于 2012-11-13 08:48:12
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1判断语句2 A6 B* {- v/ v
if <condition> then- W, S, z7 j/ g: R$ P9 J" k( @
<statement sequence1>;
. z7 Y: Q5 x! g6 Q7 Z elseif <condition> then* t. d) w$ z) ?7 Q- H
<statement sequence2>;3 f' M5 U6 k% o* J! w* b
else 0 M. X$ k& m8 M" E
<statement sequence3>;
5 o/ _9 {9 \" g1 |) [ end;
, ~" ?: v+ w5 D如果分支比较多，用：
) s! p; D f& N h+ {1 T t, c& W inspect <expression>) [9 a) H" f$ ?7 c k, c
when <constant_list> then
2 n! J# f0 ^) q, } <statement sequence1>;
: K r1 x1 C; i% |0 w" r when <constant_list> then
' [1 y/ l# w1 F# B <statement sequence2>;# `6 Z C- j4 Y: }+ q
...
5 c4 q; q h( I0 K" G( X, D9 g) i else" F& O `4 E* \1 T, q
<statement sequence3>;
/ [4 x$ k5 F: E& cend;0 b# w: B3 W1 g" U
. T2 i) ]0 s" s: E$ n2循环语句( D0 p% ~8 p3 Q( g
(1) from <statement sequence1>) N: \0 Y9 B, r% [, e; f
until <condition> loop: x/ j7 g' ~$ V6 h
<statement sequence2>;
! H& z: r X' I w+ ~ end;7 n9 W9 K& {/ {0 ?
(2) while <condition> loop( ? i* M# v, @) h. }
<statement sequence1>;
. k( z }. r2 Y% L: e$ O, B end;
* F- ?* E3 l4 l9 |/ O- v (3) repeat
" i4 e& {3 x; P1 n2 U/ b <statement sequence1>;2 N U1 Z* F6 y
until <condition>;
, j( w! b7 {5 w F6 e! r$ i (4) for <condition> to <condition> loop
6 q1 S6 f- S& Y <statement sequence1>; r7 I3 O T: x- v F# L/ h( K
next;
! _ J( d2 a# R! T+ N' t2 Q3中断语句- _! t& ]1 m+ Z0 G* e7 I
waituntil <condition> prio <integer expression>;7 b: n1 z, u" N. k/ k
+ [" |" [- `9 K- {0 k9 k
J1 A* E1 E6 P以上为常用的函数！- e2 J% {8 D$ l1 n, m$ h
还有很多，如有需要我把资料发到你邮箱里 1 c) g6 j5 c! [6 t/ w
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