|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句$ p% u- X# t( r. s. T$ A
if <condition> then
7 b g( b3 B( l/ T$ D- m: \4 t <statement sequence1>;" V" `$ Z4 F \6 I4 ]* k
elseif <condition> then! r! x" `, o' r+ U! I
<statement sequence2>;
/ j$ @" F3 H& [4 J else & v. n7 _0 i" a) j
<statement sequence3>;; u8 M y. W. ?! H8 Q
end;6 X3 E3 W3 J7 F; C \
如果分支比较多，用： B/ ^6 X, v4 O8 ?$ i( |
inspect <expression>3 \# @! v! j6 f) Z) p
when <constant_list> then. B* o4 {5 b$ y4 U# @) W3 o
<statement sequence1>;
) V7 R0 j; i6 Z. a when <constant_list> then B; o1 o, H) W, f
<statement sequence2>;
. @& E# G2 N4 m0 p* T) P ...
2 K3 f' ^2 W y6 C9 w' M( L else
$ g0 q1 g/ }/ d# ]6 @% [$ c <statement sequence3>;
, P1 X- R2 |) h" C* ` ]7 kend;
8 L, ^' [+ a* h8 n: `6 \& d& I9 F, Z+ C9 P7 o
2循环语句1 r) D: e! S; m: j% h
(1) from <statement sequence1>
' i w4 w# G) D' r2 j' z. |- F until <condition> loop7 l C9 j+ E1 v( L+ P2 y9 ]! k; }4 H
<statement sequence2>;
0 \ l9 L% b+ j% ~/ \ end;, J' }4 p/ d4 B" Q8 u% S6 Q& m
(2) while <condition> loop0 e: ]" j' e& Z1 Q
<statement sequence1>;
& `3 l4 a3 ?( y8 S0 y2 C" q; O end;
. s! X; u$ ]( k (3) repeat 1 G) C9 U$ \$ m; u; r% M5 E
<statement sequence1>;, b* Q. W O: k- Y
until <condition>;( x7 k% `1 i# x3 w, f, V
(4) for <condition> to <condition> loop; t4 V' S6 c# s( K
<statement sequence1>;
9 g4 \4 f7 K" ~! O6 s$ { next;
+ h" C1 f9 U" J, s! [- J; L3中断语句
, |$ p0 A% R0 t8 R0 Q2 I9 s waituntil <condition> prio <integer expression>;: r* M8 l) Z. S9 P% G
+ M; L$ }& {8 p) T
7 D' |6 y2 L' R* P) c, ~以上为常用的函数！4 S, O1 [0 W q% I/ d
还有很多，如有需要我把资料发到你邮箱里 - @ T2 o/ e' [ p& q, q: {
* }0 k* \ V2 G- M
% ^) f, J2 D' \, J8 G- I3 b
5 I N) k. H5 v' d- t
. _ X: U% p) Z9 t0 y; @5 D8 B! K) I, ~ ~) m6 J
4 ?8 r, {& D- e: D, S
5 U ]( h$ X {" }. M. g7 B8 O# g( [6 _$ I
' |' [' B) a* x- A+ Z ' x5 n4 S+ a# h5 t! b& m
|
|
[复制链接]
