|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
6 \( J8 W/ p4 P z3 Y if <condition> then
9 T8 I# w4 C u <statement sequence1>;
7 R( p0 j! _4 J: {7 K elseif <condition> then( _3 L, G: b0 u" e# x
<statement sequence2>;) `: t$ f* s& F% H: R" r* g
else . Z4 ?6 n4 T1 |3 i7 f
<statement sequence3>; S( R+ g! U0 x# v+ O3 G
end;3 ]8 _( B. {4 ^; V5 C- c
如果分支比较多，用：
; E, `5 O: Q# J9 S3 |$ W) r" l' j inspect <expression>
, A+ |0 V7 ^1 Z when <constant_list> then
) T. C' c) V! X& s* x4 t; B <statement sequence1>;
0 O- n: ~. [+ i; X. U/ R. t J1 O: W when <constant_list> then) Y6 g+ y9 {2 p4 _8 A# x
<statement sequence2>;
6 [& K, p# |& z9 Q5 E ...5 o$ z% h; ]& }) [7 l* ]) C
else
* M% z0 b/ y+ |/ Z <statement sequence3>;" @7 @5 S6 K! D* E* J# M3 ~: D7 O# G
end;2 C0 v; i) |5 V! M* J- E6 P
# D3 m9 Y, B4 }' V8 {( b
2循环语句8 }6 U8 ]/ D" K! A
(1) from <statement sequence1>
& E) U+ P3 n8 {8 i4 x$ V4 w until <condition> loop j) j: e5 w' L: `
<statement sequence2>;
* m% \! \% X# n2 Z; T3 I5 B' h end;
: j) Y) g4 C) N1 z7 }1 B (2) while <condition> loop
1 h. U% x& K& D: ~! k) z1 a0 C <statement sequence1>;
" v1 c/ J/ V0 k& q. }( L: {1 w end;0 w8 A. v$ X6 M/ ^* P! b% V. ^. b
(3) repeat / {( z4 ^1 D" G( a$ q+ q5 n, q
<statement sequence1>;
5 j) D s8 G) h: l& g until <condition>;+ f/ L" a" @+ t) ?. P. k
(4) for <condition> to <condition> loop
% L( z0 X) d5 y6 R2 e* Z <statement sequence1>;" T6 t0 ~6 e9 b- t. E! X) g
next;" o$ x/ l( z) H4 t& l7 R
3中断语句
8 u; A9 L# M& E+ M6 \' f; [8 R waituntil <condition> prio <integer expression>;2 _* ?) n9 O' o5 c& q
7 p) G. {% a" r1 A! g
4 }8 t! X7 _ l0 a* ^以上为常用的函数！
; N" U4 U0 a4 m2 `! P4 ~" ^% V还有很多，如有需要我把资料发到你邮箱里
! O# b: W7 m9 ^2 _0 q) z
& C: W! I, H f5 M
* D: y2 R% `. n, E5 b, @; Z- z2 S. g. Q" X2 a% W" w& o$ j, u, e
' B' e! {# d& K5 E- v- }1 R2 g- m6 u6 [5 g6 k: B- P! z
. x8 S5 [- f( d/ V& I! O8 i5 i6 t0 ], W3 J
! E# U; X8 P$ {+ N2 g
. r7 l$ |0 x4 g4 z
* G3 Y z. b% ~ [ |
|
[复制链接]
