|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句' Q% {+ q6 B3 q \7 M9 `9 O: ]
if <condition> then
, n6 E3 h j/ B; s6 l <statement sequence1>;
$ F+ d! [, M! ?' b& a$ {. z elseif <condition> then" o* m- W# E8 T0 J3 \# g2 L
<statement sequence2>;, L0 o$ D( J" N7 e4 D* v
else % I) N4 z4 m# g8 Z
<statement sequence3>;
- M- T& W4 y6 t8 L0 c' v* } end;
& Z3 X9 E# o( }" J% A7 O如果分支比较多，用：& O' G7 X* G. c: }5 q$ }
inspect <expression> ^- ^# P9 H" _! n
when <constant_list> then! _" ]' o. A6 T. L1 B/ ?
<statement sequence1>;; M0 n9 R* E4 h( F' g" K
when <constant_list> then
+ [! I6 h( E3 v1 o) f n, z <statement sequence2>;+ t5 x- G! ~1 x5 C
...$ d: ~# ?' n% a3 x: C
else
: f0 B8 ~; v5 U# w. V0 g) e <statement sequence3>;! R; z: c: C% N- @& }' L. ]' q
end;5 _0 u' \0 g! j! j" L
* i7 a4 E3 `5 ~9 I* T
2循环语句
) l5 l9 ~* K. r4 {9 ` (1) from <statement sequence1>: O5 |4 P1 T! T+ p1 g; O
until <condition> loop
$ A: y$ I% P6 s% P <statement sequence2>;
! J. x% N2 z1 E) g$ A6 \+ o2 c" | end;
8 F: L& Z! H5 J% h (2) while <condition> loop- T* h" Q3 d+ @9 p0 q2 ]6 j
<statement sequence1>;
/ z0 e& [. _$ b7 y5 u end;
) U5 r9 l. T+ O- J( }7 z (3) repeat
" |7 g% U K% f* a% ` <statement sequence1>;
4 r$ k. Z) v v% P" X until <condition>;! g" f2 I( {( E; D" Z; }" y+ D
(4) for <condition> to <condition> loop2 p; r! Q0 h. ]) P4 n J7 h9 D
<statement sequence1>;
$ M4 Q% @& f& V4 ]( h4 } next;
" H/ X0 I$ p/ k* F9 ?. q z3中断语句1 [& Z! R* v4 K) w
waituntil <condition> prio <integer expression>;- n% |$ k2 q4 m% ^
, Y$ y" `5 k3 @
" {9 N2 e1 l; c以上为常用的函数！' c. X) \: _( u: A8 r
还有很多，如有需要我把资料发到你邮箱里 ! ]* q* Q0 f( _- u4 f* D
# F1 e p3 ?- ~, I: D4 ~6 m
6 ^. e1 \ ?- k9 l: s
& z! ^/ _9 Z/ @! \; F
9 p- j6 o; F5 c- X, z5 V6 E6 q) |: q! \) D* ^; H* N
. K) h3 l2 u$ X
* I/ M3 |5 I* f8 R( F7 B ~ s4 d+ o j/ f8 u% f5 H
% _1 c( o& V; n* R. S
6 X6 \+ v! V! i8 j" z
|
|
[复制链接]
