|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
& x$ {! J2 |2 w! _4 X) s2 M if <condition> then
, [5 K( h$ p4 L5 X* U" n/ F/ n. k% ] <statement sequence1>;
2 P$ z. H. F; }) c! a elseif <condition> then- ?; P2 B4 \) t* G7 t4 ~& p
<statement sequence2>;. }3 }" n1 ]) u+ v% q) q
else
O; e$ r6 R4 B* U$ \. x <statement sequence3>;
" F0 F+ D8 v! O: s& u4 e# r end;- w0 v8 C6 @" B, _7 v# W& K9 l% _' u
如果分支比较多，用：
/ V3 v9 U% C1 }5 t7 i inspect <expression>
( Z. O# w$ _+ |, Z" [ when <constant_list> then
' U) u" _/ L0 P+ S0 s2 Q <statement sequence1>;
; q5 J n6 [6 D$ y- L when <constant_list> then
" \! s F: U6 @$ _7 w% I1 L/ n <statement sequence2>;: @& e3 i- `4 t' |, N0 g
...
" J n: X, R! H, D- P. m) N: t" y else
4 r4 `" Q6 x. s1 U& ] <statement sequence3>;/ B( A/ k0 \8 e2 H; Q ]
end;4 S' Z J( X0 L3 ?* l
- Z1 O0 j- l1 B: Z. y) |
2循环语句$ M8 n3 F9 x5 S; b
(1) from <statement sequence1>) x4 A0 M4 U+ Y( y* Y$ p
until <condition> loop
2 i! V! a. g$ n* E$ b <statement sequence2>;- U. i' A/ \3 W% K8 d
end;; I/ z) g6 ~9 f
(2) while <condition> loop
( i8 V! i5 D; V% M- t# { <statement sequence1>;8 n. [* e6 ~4 v$ n
end;
6 S* y( W+ J5 c# C l (3) repeat , K) K5 K/ o, @+ B' J) E" J2 v
<statement sequence1>;
+ ?; c+ n$ O. V4 e4 f1 P! ] until <condition>;2 y0 ]) T. D& H
(4) for <condition> to <condition> loop7 ?& y0 w9 @( A: }# I
<statement sequence1>;
# k8 M. N [& C: z next;' |) ^5 _. s8 L# ~6 C0 {, G5 B
3中断语句3 A" @9 U" Z' y' o- z
waituntil <condition> prio <integer expression>;3 X$ W+ P3 y+ k$ e* E k
% {7 u6 }! t# N
6 `% B* `: ~6 v J9 t+ j( _
以上为常用的函数！4 P7 i$ C" ~" j, x
还有很多，如有需要我把资料发到你邮箱里 0 H- y9 z# V( L( B5 b" o; D0 o1 b; w+ Z
6 G7 C3 J D) t" |! Z
8 s* u$ c$ r6 Z' A6 J0 I$ v& W! M, [1 J+ M- p+ Y' |3 \9 x
% y9 P: u% N3 @8 H
2 a" _# i0 s" g2 y$ [; @
& x3 u D; o$ G [/ e5 C4 f- L( a. D2 J3 _# V L2 y1 `: O$ [
: R0 `6 w- D3 h
$ ]2 T/ G' [: Y a. l- F$ \+ \& |2 k$ E
|
|
[复制链接]
