|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
* E: @8 { B& |0 _0 y7 Q if <condition> then! w0 u! S" y% ]) _
<statement sequence1>;) K/ ]+ U6 ~# T0 N7 u, a# z
elseif <condition> then
$ C0 X1 A2 M! |! ~, F0 ^; ^, ] <statement sequence2>;# f& t# t4 n w9 y6 n
else
o! D5 L$ x% i* T; g: a <statement sequence3>;
' X K1 X- G# f- k) v end;
+ l m3 z! t1 u6 @& s1 k2 S! o4 B如果分支比较多，用：
! ~+ i# l/ E1 f) ^+ o6 U/ k inspect <expression>
! j" b* a& H% C& E' e, z% O$ [ when <constant_list> then
2 f+ S. E) [; X* ?& ] <statement sequence1>;- \( i, i! p7 v" R9 {. h& S' o
when <constant_list> then) U/ x/ ^. b& o0 p! X
<statement sequence2>;
# q8 u' \' e) A9 W C ...0 q- j$ w4 b: S& t
else: P% N2 P8 Q. f" `0 y7 R
<statement sequence3>;
% J- _. _! ?; P1 G+ k% Lend;% G* N' ~' ^) ?7 }! `: _* c; F
/ D7 j2 P) B: ?# M, \
2循环语句
& s: L- F" {* e (1) from <statement sequence1>$ T& v/ J/ w8 n2 d, s- g2 [
until <condition> loop
8 K7 `- u. q3 \: K. U+ R <statement sequence2>;
+ d+ z( U: E* q0 f: K end;- f9 } a4 @1 T
(2) while <condition> loop
) i8 C+ V9 l2 x6 B v+ y. v <statement sequence1>;5 x. {3 d2 F( ^( I1 ~
end;
) ?1 v+ ]1 K6 k' W6 t! u8 G0 u (3) repeat . |- \/ }% N. }7 N: |% E5 K
<statement sequence1>;
! Y3 v" P1 H ]) q until <condition>;
7 v5 z% a4 r1 O% z9 j2 b7 W* _ (4) for <condition> to <condition> loop/ I& a7 ~9 W7 [, k ?( P& }; p
<statement sequence1>;
* {" D6 b6 X1 R* Y$ S next;
( N* l. n1 l1 h u3中断语句& X( n3 s W o. P& Y# a
waituntil <condition> prio <integer expression>;
( x: e: \; n, J/ X; h3 x- T# k: q+ O |
. M4 S9 u! S: s* k以上为常用的函数！
: M2 l. z* R3 x& B还有很多，如有需要我把资料发到你邮箱里 9 h5 L7 i5 ]0 ^: U) f6 F; l. @
/ v0 ?6 d. a; V/ |$ k$ J( @
& c/ L! A+ g. i8 ~- ]* d+ [1 }% R R5 `9 ~3 a0 _* x2 S
; T L3 A% x! B
: l# U0 z" E! ?+ H1 O0 t
4 w# s1 S- N _ m a
* l/ @$ }! P# I
) V/ ]* v7 g7 g7 c2 L
+ y! m. h7 `" |8 u : o [, b t. f6 {
|
|
[复制链接]
