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发表于 2012-11-13 08:48:12
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1判断语句* i% h7 I! \: G. ?# ^1 w* q5 _
if <condition> then
8 y) _: z% W/ y3 e <statement sequence1>;
% |% `& f9 t3 o& `: F7 @( t elseif <condition> then' q5 G' _6 ]# i3 D& ^& {9 c. w
<statement sequence2>;
1 E4 H. \- g% [. R* A$ y: j else 9 B) k8 I" D# J1 P
<statement sequence3>;; `2 v2 v& `8 t h ^$ |6 P! \
end;& w0 R* f6 c1 ~& u8 P5 h: q, c
如果分支比较多，用：7 {. |4 w# S6 `' O
inspect <expression>
" v* W0 R; J- V3 b/ V) t3 B1 O when <constant_list> then# v! y+ W' d0 I6 }, d4 ^# B$ {
<statement sequence1>;' a1 ?( ?# M6 N" E
when <constant_list> then
$ \* t% s* d" I: u7 b0 P/ H" ^ <statement sequence2>;
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else
\" D5 G0 D; U5 ]8 V <statement sequence3>;
$ H { @* ~: M# P' Z% i# U, uend; d4 P. Q5 A* g5 ?; F
; |4 M9 K7 i$ x7 E0 d# Y& ]5 I2循环语句
- V7 c0 J* Q( m) n% Z (1) from <statement sequence1>; Z9 }' v8 R$ J* U, o
until <condition> loop* i/ ]. g. D, M9 a: \# Z; D
<statement sequence2>;# f* T2 C$ a' ?: o# P
end;
) X5 O9 q S, D. G! k (2) while <condition> loop
+ x* e! F9 c* W' P% o <statement sequence1>;
' g1 `) S# I& L! u9 l end;9 g5 G; o# G( T3 v, u) p
(3) repeat ; ~5 N8 I7 N5 t' E
<statement sequence1>;
: C1 S- \& w2 D' s I/ w until <condition>;
7 J1 B+ Q4 U7 {& A' j2 G (4) for <condition> to <condition> loop
: ~. I2 n% O! p. S <statement sequence1>;, [0 K" {- r P
next;
8 O4 z. ], _) z( C3中断语句
8 E. ]) v# u8 l/ j waituntil <condition> prio <integer expression>;
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以上为常用的函数！, Z; B' W5 G* ^
还有很多，如有需要我把资料发到你邮箱里
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