|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
3 c; I) y& h9 p; u, Q5 O8 Q4 ^2 S if <condition> then# p5 D+ M7 ?0 E+ L& l2 P
<statement sequence1>;
^+ e9 f8 A' } elseif <condition> then
) }9 n' V( q, O" O* T1 T; h6 p <statement sequence2>;
1 {. R9 |) |# A- [ else ( B2 {/ D' F5 N z9 \( ?2 d( e
<statement sequence3>;0 A. U0 c( \, }7 G0 k
end;. V" i2 N9 `* J* u; {- I
如果分支比较多，用：
: L2 s# p, F' j, w& C8 G: i inspect <expression>
. p* z- J8 \) I; b% f( e when <constant_list> then6 }! K1 S# P$ g* \0 o
<statement sequence1>;
2 D# [1 Z, a4 H: J: [2 Q when <constant_list> then
* Y% _* ?8 s/ S <statement sequence2>;
( `. W( u; E* I; e# Z+ M% v ...
0 o- T' x+ ]: C- Z+ ^ else4 G+ n9 T8 ^( b6 k, l
<statement sequence3>;
2 k1 S- \% w: q: i9 s+ nend;
" V9 @% U% W' b1 |% M0 q- d- X. I. k$ }3 J* T/ Y- V( Y: s
2循环语句/ k, x, P) J. S) V
(1) from <statement sequence1>
, y4 c9 l5 [6 [5 b until <condition> loop
; s6 w4 e' B% {9 c <statement sequence2>;7 z% m$ L) o3 e& e
end;+ a- `$ z' M2 {8 w6 j& L% _
(2) while <condition> loop: D n; {, R! N' t- c0 i
<statement sequence1>;9 U" Y+ N& L' @- ~
end;
" e, C) R# X& f# d (3) repeat 7 d+ _; E) G1 F; ^4 z
<statement sequence1>;
% I3 q6 f! e1 K until <condition>;. H- Z# o2 W; T, C4 _" A
(4) for <condition> to <condition> loop# c' ~3 n& d' [ U2 G5 B! u8 m! z
<statement sequence1>;5 j$ R. v. d" S. L' T& Y1 S
next;( R7 E8 h0 i% O C
3中断语句
5 u5 e3 C4 r, k5 Y! F* Y5 T waituntil <condition> prio <integer expression>;
4 \ d" c0 v4 B- R6 G
6 q6 o+ Q- k1 _/ k7 n& k# ?
& D5 z& S* w( V: e0 `4 v4 {3 n* o; j3 i以上为常用的函数！
5 }/ v+ I* a2 ]0 v i6 A还有很多，如有需要我把资料发到你邮箱里
6 a3 i- Q3 x1 J: s0 h( G8 [0 U, I! L
; i. Y1 b8 {2 X; C+ i* L, Q( s
d4 y/ z D* y, L, T0 f
) r- U' u$ z. r/ l' `/ s
2 V/ G A* A1 ^6 O% g
9 L; | ^5 c+ r$ y: a( }5 r/ `, m u5 D Z, K# \- B. a
* j! A" ~+ ^/ }$ V$ @* a7 K) o3 V" n
- {3 e( f' W) E3 |* j+ @# S0 x
2 e7 N+ v* q7 S & K7 W" f. A4 D) V
|
|
[复制链接]
