|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
* c" c5 r- h( v6 ?; K8 [ if <condition> then
' U6 Z2 w: P5 A3 w <statement sequence1>;
. Q, ^4 N6 |7 M4 J6 j elseif <condition> then
; _! ]0 }- e, E$ X <statement sequence2>;8 v/ i+ G4 D, W3 ?" \
else
7 r& _7 m2 B2 _) N <statement sequence3>;
~* O1 o& q$ y end;% s' R! E9 J; _; O% S5 H$ o( e
如果分支比较多,用:
0 |7 [0 |% ?$ K$ S# q inspect <expression># X$ B" [* ?& ~+ G" X
when <constant_list> then- `1 ]1 F$ b$ q7 }- K* p
<statement sequence1>;1 {: U, R- U7 ?2 J
when <constant_list> then
+ L6 ]& F# ?6 B/ E9 B1 D1 d/ ? <statement sequence2>;
' R5 g6 _/ L0 o( Z% _ ...
3 b6 V; i3 g6 B- A2 @0 ~; U V else
* R' g( u5 Z; C. A- M <statement sequence3>;
/ a% j p- u ~9 p3 U0 e* e/ cend;! Q8 H7 K) B! s9 w+ Z" @. P
4 {# e7 w6 K$ N; M: z0 Q: h
2循环语句
3 f( @- L; Y7 A- y( q (1) from <statement sequence1>
6 }5 Q7 N: m4 C! q8 h7 u F8 D until <condition> loop2 F/ @8 W D/ c3 l! a* T3 A
<statement sequence2>;# y3 S/ w: `: I
end;8 W* a7 @1 q' [( {' k' R# D
(2) while <condition> loop3 r4 q, W# E$ g3 V) k( d* n
<statement sequence1>;
+ Q: B" F$ }; D/ q. G end; E+ P5 C( l3 P- a5 P2 |
(3) repeat
# h# m; H ]7 ?/ @+ X; I8 I4 c <statement sequence1>;
" R$ a, O. X* t6 h# U) X$ P until <condition>;
1 \; G7 p3 d! A (4) for <condition> to <condition> loop6 K' P E+ t+ ]2 ?( d. w
<statement sequence1>;
; E* g' b0 @) | i x# x5 A2 n next;, ~1 i& y( w ~9 H
3中断语句
: t* e, j9 v* C* ~7 D( E waituntil <condition> prio <integer expression>;& `, J4 @: I( k; x, h# g
- D# p1 v9 Q6 _- {3 Z& J5 K4 U/ X0 c, X& M
以上为常用的函数!
" _ v; O8 b2 I- n! g还有很多,如有需要我把资料发到你邮箱里 : L3 |2 M2 ]6 ]1 X4 v: D7 j
; v7 E6 o7 ^2 i7 R% v# x/ }& o
) _ a& x0 | s d3 E+ h6 \0 s, B% n/ d3 H+ t9 D. Y9 ~* K
8 {6 p# Z% Q! ]) r$ K
; _( A$ X; y& z) z v
) [; f6 \, r; T3 ~: u$ A! J
- i* a$ ?# C2 I6 ?5 t7 J- X/ P3 w
0 _2 M- ~1 w3 w: E0 K) @& ?+ s5 G# I, Y* h: m
2 W$ R6 l& s ~8 _ |
|