|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
" z# R, R& v6 f2 n if <condition> then
, m$ E6 \- Y1 p2 W( H <statement sequence1>;/ l* ?& o: x5 m( ^6 h& Y8 c6 w" [$ y
elseif <condition> then9 U% T3 x2 G% P- A( \2 B, F2 U
<statement sequence2>;
( ?5 J' S* ?" |5 M& @ else
6 v4 V X+ b8 O& N <statement sequence3>;
- k2 ~2 a, P- A$ d+ K7 ~ end;; v6 R% D" ^, Q: J1 u/ @9 ~
如果分支比较多，用：; W \- m |7 J6 W7 y5 \+ |3 a
inspect <expression>; t' p. i# d4 f5 _
when <constant_list> then3 M4 E3 z; {3 [: f* t1 x' K
<statement sequence1>;; D* x3 h. G9 L; Q9 U, B# D' D
when <constant_list> then
" m2 Q* a% x4 A9 C <statement sequence2>;
}4 r- S/ Z" H" |* D ...
M5 _* r9 z& l3 H! i% Q( [ else
: f2 q. Q$ ]) C. V1 k <statement sequence3>;5 t" U! i% ^9 I5 ?) e* U% f
end;* W6 ^ x. } w
2 Y m. q1 Y% z
2循环语句8 [7 j9 U" [1 i. N
(1) from <statement sequence1>5 ^( P3 y6 i. \* O2 q" D
until <condition> loop7 d9 c$ J% G0 A5 _5 K
<statement sequence2>;0 u& N1 G6 A8 Z7 q; [8 @( c
end;8 N3 n( @8 [8 c# e+ |
(2) while <condition> loop
' |' b& `$ B' n8 j" _7 X; [ <statement sequence1>;
3 M& v$ ?; R3 v3 _! I6 ~ end;- H6 @( G% R R I6 g& x
(3) repeat * y% P4 ^& _) \1 e# d- _
<statement sequence1>;
: p" r/ ?: q" ~2 B4 E6 x until <condition>;* N$ n, x0 F: P- C3 {; R( i
(4) for <condition> to <condition> loop
% k5 ~9 i- Y* O1 | <statement sequence1>;
% V S5 ^2 V. e! f ~ next;. K2 F0 g- u8 {9 i/ V
3中断语句& Q/ e; F% v' m7 y9 v8 \
waituntil <condition> prio <integer expression>;9 |( n1 q% p% J3 M ~- P1 H5 C
6 j/ F2 C: j6 E9 Q+ w
{: ~0 z- b9 l* ~6 a W- v
以上为常用的函数！7 [. m6 a: ?- |. e
还有很多，如有需要我把资料发到你邮箱里 ) O& }' I0 R/ ~* `% X
& s( N" r# G, r7 }8 D
% o7 [( h) }! v/ ~
* b" M3 s+ P9 A5 h8 l m
+ p' Z8 L8 u* }8 N6 z, ?9 S$ ?2 @2 ]. t# ^8 q& ]) }. n
3 o& b! Z, y: j2 b, y7 {3 D
; X" ^2 A7 R$ C' S
4 Q) Z5 m! G# d6 Y
8 ~! ~* W* w, z9 O8 F, e, | ; M+ u- p9 k" U1 X( ^
|
|
[复制链接]
