|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句( X) n% R. T' T! |# C1 Q0 @: ^4 O2 x
if <condition> then# N, k! B1 y" \, g U! p, q
<statement sequence1>;
: x. q) L1 R/ B# S elseif <condition> then% t2 v2 C0 @% @; }: K7 d; ?$ @# P: S
<statement sequence2>;
$ C1 W0 u! j' J& H else
2 t Z( t4 }% d+ f I. s3 E <statement sequence3>;
- |* G7 s3 D/ j/ v- c% K q end;& a$ c. W2 j" Y# r# z# N, \$ F! F
如果分支比较多，用：! J, q1 M1 ~3 i5 |/ {
inspect <expression>
1 E8 T- {2 I$ s u& c when <constant_list> then
6 ]- R/ u* | C' b: y$ w5 Z <statement sequence1>;
/ a5 `6 O2 G6 k' t" i i when <constant_list> then
% n) o/ [! I N( e. J& v <statement sequence2>;
2 s7 m" _- p, P* X$ r ...
- l: k3 i" n2 _( H else$ r- N. x- j/ Z5 S% Z
<statement sequence3>;
1 Q% m" H9 O1 a3 nend;' I6 G* U- V0 |& d! c" ]
1 m* Q1 C6 L9 W, l0 O3 z
2循环语句
: [9 m, I5 z/ H L (1) from <statement sequence1>
2 P. V9 M/ w2 @: ]5 `6 O until <condition> loop
! \- J1 a+ N! E4 C+ H <statement sequence2>;
6 R9 a, x$ G- {0 }. U1 _# E end;
' e- z' y. s6 R7 h4 @ (2) while <condition> loop
0 D0 D/ e* H" K% v8 Z Q <statement sequence1>;
; q) U6 n0 I: u9 g end;* S( R" A& Q, U8 U$ I
(3) repeat 1 A" x# ?. [% m
<statement sequence1>;
. N8 \: v2 g$ l( w4 Q' h until <condition>;
1 k; h: S$ A9 z2 h6 p8 r y (4) for <condition> to <condition> loop
2 r' q- [' i& d& N6 C6 _ <statement sequence1>;
2 M T s' P' F9 f9 K next;6 l* t& F* a Q; A. ^
3中断语句
% [# [. e3 P) T2 ~5 S* i waituntil <condition> prio <integer expression>;* }% b5 j4 Z) N4 ?* t# S
+ q5 D# H4 x: @6 z3 c2 a& E6 v4 S" V2 P3 P: r: y' i+ ~
以上为常用的函数！) v3 }( _: D; A
还有很多，如有需要我把资料发到你邮箱里
: T4 e6 {! h0 b2 A. j: X
2 N+ L1 R8 U& t9 d3 X3 G# w2 \; a* y7 ~& n: k8 V
2 N/ x C$ ~8 x3 n+ q6 G4 G
8 U) i8 t4 R# c7 I4 @' c9 S/ [4 @" k" u2 m
# @8 n& u( F* o( W
6 V% I; |5 s9 L5 h l# A
3 _6 P3 d( Z1 e5 J" }4 b
4 O+ A7 K D/ f" ~) r" [. h$ X# X6 _
. W# S' P! Y' D |
|
[复制链接]
