|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
, i; i; h% d, o4 b if <condition> then* E( S4 {) s9 y; D0 d/ |
<statement sequence1>;
% {+ {3 v4 b2 _ z" a% Q elseif <condition> then6 J7 L7 @& M5 r- v+ {- S) d) S
<statement sequence2>;
- ^' P/ C) F5 A6 n" t" J1 G1 g) [ else 4 M2 D" Z- E. z0 R. L8 o
<statement sequence3>;
& f1 ?- E3 \1 k1 c) |7 a; B end;
Q' }1 @1 I$ W1 l, g2 X @8 }如果分支比较多,用:
+ B$ f( s/ y5 f inspect <expression>; w) m" E# i5 Y6 p/ D
when <constant_list> then
5 H3 L4 [) X t, _8 ^ <statement sequence1>;& z" {: X u, g; ]
when <constant_list> then) K$ o2 T; C9 m, [9 E$ p* N: T
<statement sequence2>;1 d" y h' i6 Y' p8 w
...3 ]" F8 t8 e* o/ e; l$ l
else9 U/ H' A7 v5 ^4 Q. Z, X% q
<statement sequence3>;
[) ]3 H( O0 |$ F0 y) u! Fend;" Z+ \4 b: O: z1 l' T4 [1 P2 G) J
2 v* g" P$ A: D3 E# w$ I
2循环语句1 i) B' T0 R" H% F) k9 R; C# _
(1) from <statement sequence1>
% L) g1 H4 t) N8 q until <condition> loop! ^' S$ J. p+ H; r% D9 N
<statement sequence2>;
) F+ d3 W- g; p& L- ^0 m" X0 f end;
# h3 P! O u' X$ X; W3 B' Q (2) while <condition> loop& a, }0 u+ |& ` r8 A" ?% W
<statement sequence1>;9 ~% U7 k% g( ?6 C3 `& ?
end;
, G6 o0 I8 x8 L3 X$ i+ C) e( B9 t# n2 p (3) repeat ! R- Y/ P! D* M
<statement sequence1>;
# w o9 ?9 Z5 @: u0 ]' n( Y until <condition>;: S& X; I: K/ V: l
(4) for <condition> to <condition> loop: e# l- \( Y" v
<statement sequence1>;
5 F( \. q8 G: C% d" _& e1 l& y next;2 T; [$ n h; E8 j
3中断语句
+ l3 ]4 r* V- o; W, [6 P$ o waituntil <condition> prio <integer expression>;; s6 `* ?* c" c- @9 Y j
; _: X" j- w1 c( o
# y# }/ ~$ K4 {以上为常用的函数!
7 S: o* D0 t' }, z/ y0 V: g2 E4 W还有很多,如有需要我把资料发到你邮箱里
( f! o. d( ]0 \' P/ X4 o) ^1 P
- T) H9 v1 e: m* [5 O4 C9 m8 R# J7 F1 R" Y/ z* m" g
- [( ^6 t) i( D1 D, u% T% P
h8 A! O7 V! T5 |9 Z1 b0 H( z* N4 R2 t8 i- l- I/ }3 O& r
/ J* ~& O6 W* G; b, e
, ~3 q7 I$ A* J! q( C" ^9 [) N L4 e4 l! [7 \: Q
- ]3 A3 r2 F5 y/ v
+ U. v3 w% u2 a( B6 E2 X |
|