|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句- k* P# J8 b8 E6 l! T9 D6 K6 u" K
if <condition> then
n+ `7 V0 M* h: u( N <statement sequence1>;! x' c: W5 C$ o: s: E9 p; U
elseif <condition> then% G3 U1 H7 {/ I% `* @, a( L* o* G7 |
<statement sequence2>;
1 k. z6 N4 P* y+ k" \0 Q else : S$ ?. U# j+ f$ M" y+ R6 ?
<statement sequence3>;/ n w, W! h w5 N( a) N3 G
end;
5 k' V$ N7 c& ?& O, v8 j如果分支比较多,用:# T0 T- V' W. G9 I& e2 q
inspect <expression>
- h( v4 I. \4 N S4 p$ n2 N5 \. r" M when <constant_list> then
6 `) m5 o6 g' i1 ^ <statement sequence1>;/ L% ^1 Z) B# I" T9 Z1 w
when <constant_list> then( s! N u: D; O2 n3 H' Z. K4 }
<statement sequence2>;; ~6 N: H, g" R) Z' X9 N
...# c& O6 U+ h: |% s8 m. `7 w
else
* T4 o# t/ Y% ?! G, {% m <statement sequence3>;
0 p' W: u. r% w! cend;0 e! ?- f- [5 G$ s& u
9 s8 ?$ Z7 P9 \# ?* e; F5 R' ^
2循环语句
; `& k1 X7 s/ Q) X+ ]1 n (1) from <statement sequence1>' N/ L& ~9 M( j+ M& ?( J" k3 t9 ?
until <condition> loop* ~( h6 @, Y M, l
<statement sequence2>;" P& `/ w* P2 j: x
end;+ S1 ?: b, x4 ^% A! r
(2) while <condition> loop
x) P& |9 f3 z6 p3 r <statement sequence1>;
* a# Q! ~7 l/ G! J# O9 D$ B end;
?9 W. n G; D P; F. o: q (3) repeat ! D( C9 V' Z0 V& L; o# ~
<statement sequence1>;& Y: b. A$ J: k
until <condition>;6 S$ v' e0 V( ~( z# m, W
(4) for <condition> to <condition> loop
, U$ s$ c7 r, K <statement sequence1>;1 Q( ^ x4 ?- b2 f0 X' F
next;, ~# P, q! v, Q+ T' f* T
3中断语句6 Y0 ?' o$ }: W: Z5 j9 X. M' ~6 ~$ e
waituntil <condition> prio <integer expression>;
; n+ F) f8 O. F; l P9 `* r, R- Z# q8 N( C
& v% \! X( l9 F" v/ L' Q
以上为常用的函数!8 A: w1 K8 J$ K7 i6 F
还有很多,如有需要我把资料发到你邮箱里 * |: y; N9 l: o5 N* t2 i3 _" Z
6 ^" F0 V7 r/ y6 r+ ]# Z
5 i, v" o" s) u8 t, u0 ? B. Z4 {" @6 F. N8 w
3 X7 G# r0 r% Y! @# g$ Z
( d! D4 a& Z. i" ?4 a6 s9 {, u4 o4 x; v
7 l/ {/ m9 x H1 y- K) y6 e0 q: ]7 I5 p. V: T' Y4 t
L" h$ G p' I" d8 ~- a% ]
+ r5 E; b. t7 b
+ u2 n- ^4 _4 ? |
|