|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句- y. E$ k1 g+ Q5 P" H( S3 F6 f; z
if <condition> then
. o1 O1 O( C% A2 b; l) A <statement sequence1>;
2 F+ b5 ]" |1 Q0 V( w8 ^' v5 c elseif <condition> then
6 x! b2 o% c, g' }9 z <statement sequence2>;
! O2 Z9 z3 L' q, X' J8 E+ ~ else 5 B6 F% P" S4 H% A" m
<statement sequence3>;& i( G' F; Z& a; M8 U* b- H
end;+ n2 `8 J$ z, C- d8 i* g) y% m
如果分支比较多，用：
" a3 F1 X" Z3 I2 h0 i inspect <expression>) `/ t5 P3 G2 W* @
when <constant_list> then
: c1 _' z6 p7 v# } <statement sequence1>;2 q) z: [% e: u3 t8 I
when <constant_list> then
0 J3 Y- F' m* g <statement sequence2>;8 h9 ~8 o& J* N$ s% \; K
...
: X; U0 h! D- v$ g else
; q7 x. g. J9 l, y& V- k <statement sequence3>;7 i, O9 n, L+ f7 B
end;: m7 t( e1 R. R3 ^6 U9 B
. R/ s+ a5 P/ F+ H* u) W. B; T7 r2循环语句- P# e; }( e7 {0 e+ o# y2 l) ~2 K
(1) from <statement sequence1>" E. Z( V- L z1 G( R' L# t/ @
until <condition> loop
2 H5 S; x3 B5 a, {! U <statement sequence2>;
% Q" H: h5 E% H, ?9 Y8 ` end;5 B9 H5 K' ~' b) m+ X5 a
(2) while <condition> loop6 F) t( N5 I; D& r! q
<statement sequence1>;
) ~5 g6 W- ~8 f8 U; ] B end;
9 P, M/ {6 j4 g2 ? (3) repeat
( Z& n d4 h" v/ n; ]* q9 m, e <statement sequence1>;
3 [! s j4 O7 L1 y. U2 t until <condition>;9 @9 |; S/ |- ]. e, ]- }, Z' [
(4) for <condition> to <condition> loop
8 t' ~' L+ G/ W( w <statement sequence1>;
7 [8 Q' J% _3 z9 ?! @( [ next;
0 p* t4 o( Q! `, {: \3中断语句& f+ q; L' c' }& c+ a1 G
waituntil <condition> prio <integer expression>;
x o9 l: U2 E9 p5 [" {3 [' U
- M- R9 A; v c0 Z
0 }4 O" t5 C- n) Q) B' j以上为常用的函数！0 z# u/ C$ j( b2 b5 N$ N
还有很多，如有需要我把资料发到你邮箱里
i* _. k0 Q8 i, y
+ \- v& e( A3 T) j& x9 L7 ^' R& _0 U' {
/ q" E5 u, ]1 l + T# B$ E* R W: R
X- z# ` x9 g [2 h7 \6 v' e
) I8 G9 ?+ _6 ?0 e: {
$ }6 C5 _& L2 O. N& B0 u
" y6 H4 O0 V, k6 w* z
+ P2 K; }* s8 Q9 l 4 ^ W& A' z0 ^* h1 w3 j- a. `, c( X& D
|
|
[复制链接]
