|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句2 k4 [. Y6 p: T) y9 l
if <condition> then
4 e; F0 a: M0 F( m <statement sequence1>;
9 A+ v( A3 ^2 Z* J0 G elseif <condition> then
: b ?* i3 }, u1 |3 ~ <statement sequence2>;
, B: X0 P+ D0 d+ l6 @: r else
8 @4 B, `+ F0 J( O( r <statement sequence3>;
( f1 f B( ~* N+ N4 m end;
2 W2 y) }5 T' _: @5 p% g! m0 b6 t如果分支比较多，用：
9 i+ w+ O5 y) t7 d8 p, h5 V% }# T% h inspect <expression>$ C. G( Z; r" O; l: h! |
when <constant_list> then: ?3 h0 R9 X/ }! }1 M' R) x# S
<statement sequence1>;
/ }1 J" G& c3 W9 M& A1 V when <constant_list> then
% b5 }% g S- e <statement sequence2>;, c3 l0 Q! o5 Q2 p) n$ p
...0 o: j+ e/ k8 q# }* I% z9 ?# N
else
7 c( e: }4 M4 @* A8 e3 a( p/ O) F <statement sequence3>;
2 M- a7 q! ~; f3 l( U$ B T! iend;' ?2 u' {7 ?9 i1 Z3 T& q
* g/ b$ g1 @, |$ w( x9 G( S3 ~4 f
2循环语句8 e- [2 w8 v6 X' y9 j a
(1) from <statement sequence1>
) n/ x9 i) y M- C' o5 c" O1 S until <condition> loop
2 a" G4 a1 \, D) e1 o9 @ <statement sequence2>;/ g: w9 @' _" {) f g3 g6 g0 {
end;. R; E5 o' D) W& ^
(2) while <condition> loop
0 v- K! T4 y' j <statement sequence1>;
" ^4 j& B5 s. M+ B1 O/ S' u. [ end;5 \+ U) {* P7 z8 s: h
(3) repeat ; ^5 I/ G) [: i, u
<statement sequence1>; @: \8 m f: P
until <condition>;9 s; c0 b; A! ^# g7 p
(4) for <condition> to <condition> loop, p: N+ q# x/ i
<statement sequence1>;$ T7 b( T* r/ A; } P% n1 _$ O7 j; m
next;, i: D P4 U! x/ {6 P+ ~, p
3中断语句
6 A6 n! y: z/ S2 k- W! i waituntil <condition> prio <integer expression>;
+ ~" J1 a2 I9 a2 W, j1 F/ S0 n0 X2 p9 F: z$ C- d
. S$ T2 u& y `9 q8 Z; U# H* U以上为常用的函数！
; i1 M B: d: r- l5 v还有很多，如有需要我把资料发到你邮箱里
( z, F- B' m) h( y# p: j
" k0 j! ~7 Y3 Q( B$ E' ?: T# O6 M. c0 A p2 {
! E9 C4 |% V0 c: O' ]3 b4 Z8 Q
; O" N; T$ M5 ^. \. f$ J$ r! M
. D, R+ ~. P" P1 c$ w, r
% ^) ]7 U, H8 p3 L( r ~6 ^& r4 L: P+ P
5 F9 v- l% m2 r8 u
9 Y! v5 o- g$ x- W9 A0 K0 `5 P. l7 k
8 d/ [7 r' \; N6 b& ` |
|
[复制链接]
