|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
& c) ]. @* H" x, R- G9 ^ if <condition> then" E% Y& S3 m6 @ G
<statement sequence1>;
% F, z" k6 u7 v; B$ Y3 d2 [* S" T elseif <condition> then
( Z/ w! K3 K9 x; i' M9 L+ D <statement sequence2>;
1 C2 @; N/ P# }) q$ o, N else
' c+ ^& w2 m: z5 h& f <statement sequence3>;
1 K; e2 a, R3 s3 A/ ^ end;
' ^: N# u. n' u3 L& ^, s) V" h如果分支比较多，用：
. d4 Q- W @8 O, [% c8 _ inspect <expression>, ~ ~. J2 o; e/ T/ K r
when <constant_list> then
4 j/ {9 [: R+ Y6 U$ N& J <statement sequence1>;9 P' S5 }" {* w+ q
when <constant_list> then
$ b# g3 E- j* n7 J( @! C+ L5 E <statement sequence2>;
, i# g7 @5 W0 d+ T ...
% o+ c& k8 u3 O1 Q j6 f0 P; I else. q# ]( I2 Z9 _% L
<statement sequence3>;
- }8 w; z. l8 B* K; l/ o7 Rend;
6 C9 D- q) G6 j" C- e# Y4 S7 z- \. R& D' J5 m/ Y
2循环语句
8 T% |: M+ W# T2 B$ {% f8 S (1) from <statement sequence1>! z! `/ v1 ]1 v7 l
until <condition> loop
- p4 ]- `: N9 r <statement sequence2>;* N& T0 V ^, y; ]% ~2 [# u
end;
, I. F$ q/ O, F+ C, q- ^& i1 ~& e (2) while <condition> loop' J4 `- E1 r6 v/ \6 J
<statement sequence1>;5 i2 m" Z* s& ]! C0 t5 F: x( L) S
end;
, r/ a- q# W6 @ (3) repeat
' Z" o3 x) S2 N+ n/ Y$ {; L! H <statement sequence1>;
" f( ~* P# b. l; r" b3 h2 c until <condition>;) U% _# k% s# c# \4 Q
(4) for <condition> to <condition> loop
* D- \# H4 |* F ^+ Z4 Q <statement sequence1>;
. L) s8 z4 O: Y. D9 _7 ~; | next;
6 L6 T4 e' y* ~, k( L' G3中断语句
?8 u+ s; I' Q/ r" G' e" I; m waituntil <condition> prio <integer expression>;/ k7 S, D; m4 I& s
) t4 ^! P; X% G4 ?
, a. y+ K+ i+ G; k% A8 F以上为常用的函数！
V/ {) F, q7 M1 V/ ^) G/ r3 L0 y还有很多，如有需要我把资料发到你邮箱里 5 ~6 ~; A3 s* C& \/ @( S
8 W" ]8 t1 y& i0 I# G u* J
2 l6 s- S, c' r2 h# o0 H
* W: W) ]& x2 r' y3 S& t4 L+ l8 x ; o! w) i, s A) I' r2 F, i' T0 R- y
! y: F, Q+ w+ @6 d; L$ j) T
5 X0 F+ k/ y$ b# b5 |! Z
. |! _! n6 H8 g* M4 m5 P4 V0 p j" g6 g$ A9 M8 l
2 V5 M) v4 C R* A/ c# k
' P- Q+ F( m+ u7 ~9 K0 [5 J |
|
[复制链接]
