|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句/ X$ w, d" I5 }
if <condition> then
" A9 r6 ^& H/ v4 ? <statement sequence1>;
) E: Z( e6 n% }6 a elseif <condition> then: W0 V( W) {6 I; z* v/ u# k5 n# Q
<statement sequence2>;1 ]5 X z3 e7 a f, M) i
else
* ]. B! J7 t0 x8 V <statement sequence3>;, r: e/ V4 H) S6 z1 R: _
end;
/ k: k1 d! K. R0 g1 k, i1 ~' [3 @3 e; I如果分支比较多，用：( d# |. ~1 N3 U D1 T9 V& a4 Q2 u
inspect <expression>
0 O7 L N& O- B L: T) ?1 \4 R# I when <constant_list> then" L) L1 ?% d; x+ y/ B8 @
<statement sequence1>;/ ?+ R$ }7 X! R7 w; p. ]3 H4 t
when <constant_list> then
! n* \3 |3 \* w8 n" I" b <statement sequence2>;
' C. J6 ]$ c; q ...% S2 N9 |( e0 M$ }4 \- w. Y3 m1 n
else& I, ?, i! g2 { W, P) q2 t5 @. C
<statement sequence3>;
$ z0 u M1 G. _; a6 `end;0 x* e/ J+ z0 D7 @
9 ]7 M4 f: b, \3 x% D; Z
2循环语句3 |: J' @5 w1 y) H" H
(1) from <statement sequence1>; U6 K# e% |/ G" G
until <condition> loop
9 S* T+ t0 H( Y% |7 O5 K0 k <statement sequence2>;4 y( P6 u# V. T
end;
' J1 q% l- N* {% t) W (2) while <condition> loop9 A2 H% i5 |8 {5 K
<statement sequence1>;
' s6 C* E! A9 @( r, h+ q, B end;
" a+ ]" L2 j4 ?9 T, I7 ~ (3) repeat ' R6 w5 y2 ?9 ^" i. Z1 i& h
<statement sequence1>;
$ j v; g w! \ K until <condition>;5 p) j9 s/ t, y) W" l6 I- M ^* u
(4) for <condition> to <condition> loop) [% v* L5 m* r. J( k5 T* b
<statement sequence1>;
* |. L- B1 |# Y6 w6 [ next;
- u8 ]7 d8 e" G" i) o6 J7 r& c T3中断语句. t; I/ I$ }. n* C* L3 T: v8 ]! b
waituntil <condition> prio <integer expression>;% D5 |$ U2 D- y
7 [0 U) f2 s) h% @& Q* v& v# @4 Z% }( y3 v* ^8 c! Q
以上为常用的函数！, ]+ m1 j# `6 x9 y( E; h* o
还有很多，如有需要我把资料发到你邮箱里
: `1 L+ `* S; g9 E. f! r8 L% F, z# ?2 g& u, L; k
2 }% _6 z% v$ F S" ~& ~
, g. x$ t' k9 C. p, {; s / T; ]6 U3 O8 i
' d; Q6 V# X. q4 u; ?% }! b% M S$ K1 Y: C
9 A% m7 J$ ~2 E
0 \4 w. ^$ _; Y3 U& F
, |$ [1 i o; X6 D 0 i' y2 r6 Z3 e) o0 i5 L4 M) L
|
|
[复制链接]
