|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句7 J8 f$ k; B+ W: `) A
if <condition> then) ?' B% L# S& ^; w7 h) u+ `+ {
<statement sequence1>;
s, c) R1 m! S" T( Y elseif <condition> then$ f+ v& c/ M/ m' u" g
<statement sequence2>;: ?; I) L% A% w# t
else
% F6 a N$ |4 w: E7 r <statement sequence3>;6 D$ l5 U; o/ ~ [
end;* Y3 D: U8 W& d1 v& Y m
如果分支比较多,用:
/ K+ o7 x6 M5 `: _5 S inspect <expression>; {% e. X$ e$ O8 C% l* d+ ^) G6 n
when <constant_list> then
/ [8 L8 v; M ?3 o <statement sequence1>;0 X2 s* a+ e- p
when <constant_list> then
5 j2 ]' g$ t/ M' \3 Y: m [ <statement sequence2>;
$ v' t F6 X8 e9 r) s7 A ...( Z3 u J- w0 p. P j2 E$ \
else
4 X% Z8 z) n! k h+ d <statement sequence3>;
3 l4 \0 n5 k, n$ ^7 Aend;
/ j! P# o* v2 `
$ P" C0 b5 Q, e1 ]8 y7 V+ w2 @2循环语句( R. `7 `# D" a& [6 K
(1) from <statement sequence1>3 Y! y: W! V5 j' k
until <condition> loop5 |4 V: q& J( \& Y i' r ?! w
<statement sequence2>;' n7 Z- b! Z% k0 S
end;# m0 j& j6 s9 v4 P; K
(2) while <condition> loop
- G5 E% K9 ^, ^) p0 B$ S! { <statement sequence1>;
0 s; f6 U' z) h$ N end;+ U$ f( i9 ?% E4 E8 x* [
(3) repeat 9 `' s: j; G6 T+ O' N+ G( z
<statement sequence1>;, k1 G8 D% T% b6 @; S' ?
until <condition>;2 D/ R' s! w. u3 \* b1 h
(4) for <condition> to <condition> loop
2 K2 X6 X; M R) |5 v2 x- x <statement sequence1>;
( E* K% l/ W" G8 ?/ W next;
# Y' w u: l( |1 B3 G6 n3中断语句
& D" l0 M8 U- ^ waituntil <condition> prio <integer expression>; G# S* |7 v. K7 u
# J, s7 m* N5 n4 [/ Q" k7 C' u# q7 X" C2 \" v: P5 @' K
以上为常用的函数!
# C* c! Y% x: ]2 }. d4 m7 \还有很多,如有需要我把资料发到你邮箱里
- u% h4 i% L) N* ?
6 E0 r, V0 A5 |. g) Q! m: l2 U6 \1 I, n3 Q8 K" _
1 J8 f9 v$ m! h8 Z2 M' Z8 X- C
2 [4 m/ e5 V' m8 h% L) D, `! w- [2 _& g. l+ u5 O" v
; W! U( w( G3 o
$ |$ ]1 e! V j5 t: o
2 l. C- ]" ~# _' I! l0 M
+ l, V* _: P# ^9 {* y
3 \5 G2 C3 m2 t: u0 W |
|