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发表于 2012-11-13 08:48:12
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1判断语句
0 q' L6 H, I: ?' n2 M if <condition> then4 |8 j1 B! m6 J ?- M/ E( B/ _/ r
<statement sequence1>;1 t$ c: Q# `( _* M" b5 ^5 h$ i; B+ a
elseif <condition> then5 e7 o& X/ m% F3 u+ P
<statement sequence2>;
n% B7 f& ~$ F) g/ R4 p else
" ^+ p A+ m0 G: W; j* C1 e& } <statement sequence3>;
6 Q. ]8 \- `, E' ]- i4 m end;
4 f1 y- s+ x0 [4 p+ v1 u. A如果分支比较多，用：
{. `% { \0 J+ w; p inspect <expression>
5 i6 o+ v8 B; ?* I) E when <constant_list> then+ r2 _5 P C* X$ E2 U6 @; g
<statement sequence1>;3 }( T% s0 g2 h1 E0 K
when <constant_list> then3 u; U0 ~# e- c8 q7 G' K
<statement sequence2>;
) N6 A0 s/ J/ K" `- B+ s$ E: ] ...' h1 a ]2 Z" A4 I" [
else+ G! `4 \2 ?; S4 B$ F$ g3 @
<statement sequence3>;
1 y. ?- H. ]( d0 u$ @* h* Tend;7 \! D3 {- Q6 ^9 T+ x- p
0 O; `2 I9 O+ B# j& ^2循环语句( Z0 s3 {! K! R1 x# m% t7 o
(1) from <statement sequence1>% V; I$ U7 I9 R# d
until <condition> loop* S/ x4 P9 P% x
<statement sequence2>;
% r+ B* Q9 ]/ ^% o end;' W6 U g+ a9 c; Z& p8 B
(2) while <condition> loop( r: j. H4 f4 O8 y- j
<statement sequence1>;" {8 V; ]$ k. U$ H7 l, y! F
end;
6 l: G9 G- N. S; B; u" X. Q (3) repeat 6 F& l, A) `7 u3 q
<statement sequence1>;3 [. G$ X% Y: T* z3 w
until <condition>;3 `% H9 D$ z8 f& B% P
(4) for <condition> to <condition> loop/ c% i# M8 ?( l& c6 u. R6 C
<statement sequence1>;- ?# {+ l, W3 W7 z
next;; f9 c! f7 y; m7 H3 X) H7 y; w3 T
3中断语句8 U# G& \0 L6 K8 u6 z
waituntil <condition> prio <integer expression>;( h" j. s' Q$ `% R) I% h6 n1 p1 M- g
; S% g$ ?% q4 @* q: y
, s v6 e8 h { g+ Z# I! T# j# ]以上为常用的函数！
: t) y: c4 z, p* c* T3 ? w还有很多，如有需要我把资料发到你邮箱里
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