|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句' S! s% o" `. I
if <condition> then
* S2 U$ n" c" a! q. K. d <statement sequence1>;) m/ M% d4 S2 W, S- ?8 X2 j/ y
elseif <condition> then
# R1 j* Y3 j2 x: y7 G* N6 T+ S, _$ _ <statement sequence2>;
" L: w2 E2 m: x! r2 K: d7 B! B else
4 ]7 Y8 T& b" f9 F <statement sequence3>;! W! _2 p N" m3 V3 N
end;
# S0 |: E# Q1 e% t. \5 N8 ]如果分支比较多,用:
7 t M; w2 b/ E! Y! o6 a2 P8 ]) q inspect <expression>
! t7 a$ S2 Q) l8 a- k when <constant_list> then
# Q9 {) |" N" ?- k <statement sequence1>;
5 J+ P' P! v/ `. ^ when <constant_list> then ]; v, @9 V5 e; z! S: W
<statement sequence2>;
% N. Z3 h. g {0 X+ Y ...7 ^- T: h& E- ?/ i* g/ @
else
) b& x. W2 r9 U6 C <statement sequence3>;
5 } K4 F3 r5 \, H# Mend;
- N& o5 k. w' W5 M- _( ]$ \* G T K7 o5 \! `- M( c
2循环语句* R$ `* c6 e1 d5 ^& z. R
(1) from <statement sequence1>
+ U( w' ?" |* h& f* d until <condition> loop
# d' a) r4 ~! p ~0 u <statement sequence2>;
1 d4 i; q' r2 g& @: m end;
6 @( d0 [ y6 b _9 o9 t# N3 ]4 A (2) while <condition> loop
Z/ i; z) [/ n& U5 v <statement sequence1>;
0 N; f2 Z% l& H2 X ? end;4 R9 x( m/ i' |" G
(3) repeat % w Z# X3 a* N$ {9 n4 w5 b
<statement sequence1>;
$ s, s, J. H& K until <condition>;
: z. y/ u8 j6 u( Z (4) for <condition> to <condition> loop! S2 W0 z, x6 P) V6 s8 I' y
<statement sequence1>;& L' C: j; d0 M, ]( ?' a4 U
next;
6 ? B) x7 x4 p3中断语句
+ [6 L J( w6 u* \) S ] waituntil <condition> prio <integer expression>;
7 N9 z" x% F* o y: n
+ r9 _ y# I2 G/ q2 b! {
9 ~. ~ w; @" b5 ? H& K" }! f9 Z$ }以上为常用的函数!- v" M1 O0 v& S& c5 c. N" N5 `
还有很多,如有需要我把资料发到你邮箱里
9 \6 ^ n2 q9 Y9 ?$ q
" F/ q; u1 f0 o: K
% x: O% c4 \- @4 \* M9 q% ^# E9 v
. { A g6 L% T1 R2 m
# C+ l0 t; v) o7 _# K. _& J/ `; W) `
9 Y0 t# H( ~* p" f/ P( u/ I9 i2 S- z a
) U! o! K3 I: ]" ?9 U C* i$ Q
- W3 i! H6 T9 S2 m& E 2 g1 [5 y! T( d. {2 Q- e5 p
|
|