|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句" k7 T: t- N) p6 U4 l* ?' [
if <condition> then
$ a' B E3 Q4 O9 _* b <statement sequence1>;: j9 m2 i& k! Z. C0 G
elseif <condition> then
0 ^! _& k" _ l <statement sequence2>;) P/ ]' \0 Q- t6 L( ~2 ^* l; \
else
1 o/ f6 L5 B! N7 _% i% j0 x" G8 S <statement sequence3>;/ Z3 A0 a2 ?) J9 L v. P# O$ r9 P
end;
9 j* i5 K4 |$ V/ @# [/ P如果分支比较多，用：
& Y r7 Q* [& h' Y, m inspect <expression>
8 L1 a4 ?! z) J! h when <constant_list> then
! W" G. Y- D9 v3 i' E' u0 H/ M <statement sequence1>;9 q, W6 R, J: F: F% l& W
when <constant_list> then/ e" l$ P- B3 j, r3 y7 u" R, Y$ t
<statement sequence2>;
8 D' B8 g3 [; g8 a5 K ...
, G4 p" h1 m9 W( D else
: g6 K$ c0 g7 g* D; B' h$ A <statement sequence3>;
& ^1 B4 u3 L4 kend;
X, @% u- M+ g$ u: M% Q: _: i
- S) ^% ^3 V( E! d" Q2循环语句
$ d! T! N& m* j+ T7 i (1) from <statement sequence1>1 S* X8 F" c& P# z+ g
until <condition> loop
" ], a7 H+ P2 D0 T( O# X <statement sequence2>;
, q$ [2 k! {% E8 [5 l5 G end;6 ]- }$ h; `) v: K) t, S: U. t( h$ g
(2) while <condition> loop" N# Q# L* P1 k; R- `$ }; y) k1 f
<statement sequence1>;
% X. v* G/ e3 }" X3 B end;: b3 @2 k3 w1 A8 U3 C
(3) repeat + B* @% B4 M* h9 k* r9 p% z5 W
<statement sequence1>;- ^. w3 [1 ?: q7 y3 v
until <condition>;
0 J1 w, x- w! g (4) for <condition> to <condition> loop
3 c! l% `0 S0 I } <statement sequence1>;
0 p+ l1 U) w% F next;5 J M- e; @8 u6 w i- ^
3中断语句
z9 i* }1 y+ n9 p$ o! x: h waituntil <condition> prio <integer expression>;9 f2 ]( H* x0 S* N- [
" ~( f s' j/ w+ u# N! J# [: R+ [5 r
; n9 K: c: G# J ~* e
以上为常用的函数！/ a$ u( W. @& k% D( t% W
还有很多，如有需要我把资料发到你邮箱里 + Y; e) U: R H8 E; ~
* R* |# }7 e8 S r- j# S
& _5 n7 N) U( M7 t2 m
8 z s* `4 O' T- i' v
4 \+ t+ C/ k9 k1 K+ ?6 ]/ \5 {/ z# C4 ^
, ~0 i [) P! u* {& e
0 i3 m) A0 [- h6 a, Z
2 J5 @* o8 p: [( h: S0 x
( c/ ?% E, S) _9 }: @ 9 Q* n( c( h T _ D/ U& w7 h
|
|
[复制链接]
