|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句' W8 V, [8 _" ^0 m0 _
if <condition> then( K) h, q; Z7 N
<statement sequence1>;4 J/ V& n9 ^" v @ g" B0 f# f
elseif <condition> then* x$ r! a. ^5 d5 \1 s: m6 s
<statement sequence2>;% T2 N* A) v5 b, C
else + j, n$ W7 M( s1 i$ |
<statement sequence3>;$ O2 ?6 e5 t9 T k$ A% z
end; N4 S+ k$ G) _5 R1 `( F$ v% p
如果分支比较多，用：
& J( p) ^$ q3 ^9 g inspect <expression>( g4 A6 D' {7 Q! e% V8 ^) Q
when <constant_list> then5 K( g8 x: M8 `% w+ v8 r
<statement sequence1>;
, L: _0 v; m) f) s! F when <constant_list> then8 n6 m- t3 x. i1 w. Y
<statement sequence2>;/ @; M: t7 U- M b
...
' Y' b: M9 [1 O. r0 Q; ` else! v6 u( N- V, g4 }; d
<statement sequence3>;! n% V* e2 k) e5 [! _
end;2 b7 K/ ^' y5 p7 |; A" Z( m4 x
+ r( w# _6 ]9 W1 ~
2循环语句7 w* U4 |2 t5 `: S% v- |
(1) from <statement sequence1>, f4 k2 k2 \ c& S' L" n! z
until <condition> loop& H7 Y+ H* D( y `) O0 S
<statement sequence2>;8 d2 W( L Q5 _% j; [
end;2 \" ]0 n, c5 M& M: [
(2) while <condition> loop$ U, p: v5 m; V+ g& m8 p
<statement sequence1>;
" M9 [) D: J: }+ N) a% G end;3 A4 B8 M& Q7 @3 @6 ?! I
(3) repeat
* g; ?9 b* P9 w! G9 m& I4 W) I9 v- L <statement sequence1>;
$ @9 n9 T, S6 e' }: x until <condition>;% `; a& L& T5 s: n
(4) for <condition> to <condition> loop
! n1 ^9 z( d$ Q1 O, }+ A <statement sequence1>;
. i& }% F' F1 j4 i2 K: |% ^, e$ i next;
5 g3 c4 M7 h1 Z, ~3 t8 B/ [3中断语句/ l7 M7 H# ]' Z! l5 x
waituntil <condition> prio <integer expression>; P6 ~, n1 ~/ A8 K! h6 o
: i, |+ ~4 c5 Z' |1 e/ T" f' _; a! b0 L! s. Z
以上为常用的函数！
; f9 f1 u% x" T$ T6 j. T还有很多，如有需要我把资料发到你邮箱里
2 \1 B. F" F3 D0 ?6 u7 h* |; c! S, ]/ S1 t; U( E; {: p
0 @. ~3 j& ? {9 u) R3 k- g
Q" K, q$ v3 z/ X" `4 | . B; ]# M" W6 R$ J4 @3 b' m
+ Q% j4 i) _- i( Y( {
7 J7 q, V$ k4 O2 v, f( N5 U( i/ e
; L+ N! |6 p3 ~* f3 f0 s4 j3 x6 D1 L. f6 N) M
4 D( G+ {; r) b0 {+ u; a* a
) }3 w/ E) a, Z7 J5 u- `4 Y |
|
[复制链接]
