|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句. [7 K7 W8 k* y! }" d* t
if <condition> then
/ q2 U$ s1 f* w" r( D <statement sequence1>;* q3 }2 F; ]9 g% v! _
elseif <condition> then
4 e! l. p2 M: L: L <statement sequence2>;0 O) H7 F$ ?; i1 |7 k
else ) M4 ?. j, d, b
<statement sequence3>;
. K0 v Q( }* F% r6 g% n8 p end;
+ }9 h; F- O: l M# `9 s% U如果分支比较多,用:6 N! x! T8 Z# g0 N9 ?' h* x% A
inspect <expression>
- K3 l0 m0 Z+ j- r when <constant_list> then
' T& C8 l) ]3 y/ f <statement sequence1>;
$ A D3 U7 @6 a7 a when <constant_list> then
0 V. X0 F3 k, l* N% H. S$ l <statement sequence2>;9 X) I% s( u1 u @, E& ^1 d" P2 s
...( r% B8 S4 K7 t8 r. Q- n
else
8 w' B$ |& ?5 u2 D6 L. c <statement sequence3>;# g$ g/ }1 ^/ j, | M# A" U
end;4 g' g7 I2 ~. U/ n' L( |
, }9 n( A6 g/ M/ ^6 E
2循环语句
) c- _! z9 x; P( ^8 g# B* x+ v S (1) from <statement sequence1>
9 r6 _. } q; g until <condition> loop
* v3 Y2 i$ W; ?$ c, _ <statement sequence2>;
& K& A* i; a/ A; v; N2 t end;
K6 p. e! b) D& Y) x (2) while <condition> loop$ t8 p5 b* |6 o. h% L
<statement sequence1>;) x2 T8 b5 D4 k v$ e, V
end;
% M0 ^. A* [' H7 } (3) repeat
s- ~/ F2 x b <statement sequence1>;
7 }* P. E1 ^( \* \! M% d; q until <condition>;0 o7 A7 a) A) l! t$ C" F; {$ M P
(4) for <condition> to <condition> loop3 Y. o& H3 s, D; w- P7 ^
<statement sequence1>;
2 h5 \0 R' e$ ?3 _! M5 c, d next;. G; g+ G$ L( Y5 w: A
3中断语句! Y8 |' \) L# j* ]$ T' I, }& Z
waituntil <condition> prio <integer expression>;
' p6 S7 r/ x; W! L5 b, E, g5 B. G) m, X8 C- `
, C+ K9 o Q" c \5 o- L以上为常用的函数!
# m& S; }: X9 n6 S) ]8 X1 n还有很多,如有需要我把资料发到你邮箱里
( Y- \0 H- N7 U6 n
. l$ V. A& k: g& \5 {8 K4 T) ~5 _! s! e( J9 y8 G3 O
Z( y/ t8 u# s# i7 r$ K( W: g5 e
/ C- s0 [- r1 |) w. }
; ~) m) T. | U4 C$ D+ d
+ B6 E9 C2 Q6 K4 a# {: r+ p5 U w3 T" B D, y. S3 U
' @' g9 P5 I7 K, P. s4 O
9 X1 i: H& R7 }7 E" Z$ c. B# f
6 F* U1 N3 N4 `# s4 U) q |
|