|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句* o8 ^+ K$ Q) x5 e( T5 z' e; i
if <condition> then
- t# e1 l6 O: F6 k" H% u& U7 `- E <statement sequence1>;
# l: X2 ?8 q% ?6 c' P. q: G2 `6 b* c elseif <condition> then: L# @! [5 P! E0 Q9 y
<statement sequence2>;
- D6 _8 Y/ y" d8 S7 w+ x1 v else 7 D2 @ @. S2 c% c( W' j7 Z5 W
<statement sequence3>;) S! n' b% {% B1 ]3 ]- C" o; @
end;
1 I; [* i4 K% H. r如果分支比较多，用：
" y# g0 W6 z% {: p, a inspect <expression>
% @1 Y" t6 T; K& Z1 N+ j7 p when <constant_list> then! f1 j) F3 Z& ~. i$ B( X8 E: h
<statement sequence1>; o# o7 L9 Q$ p3 Z/ F" N
when <constant_list> then* R/ h% }3 \1 E9 N5 ^9 w
<statement sequence2>;
4 g, A* P- x/ x8 g3 S ...9 l2 T! t+ I7 [% j: q4 F
else
! {4 b+ T& @: ~" O2 s <statement sequence3>;
, V4 {& x$ \# U- y) P) iend;
; J- d0 `, x: N0 t
$ Y% R/ @. s: }/ z; g2循环语句% o6 S6 k. Z' y$ X. d# d4 R
(1) from <statement sequence1>& M% r* \, S7 `3 R C
until <condition> loop
# [" y6 M3 a: X1 ^5 M <statement sequence2>;
5 ^; I4 @" V1 {& x! n end;
! L% }7 Q) K! X) o (2) while <condition> loop8 n) T3 T1 |4 L8 Y- Q
<statement sequence1>;
! N" Q/ A( M8 w1 h: } end;# X" a8 b5 ^7 h: ?( T- e
(3) repeat 2 s' U; q' w0 b6 B- [
<statement sequence1>;5 j+ C" ?( P0 l- z# |0 _
until <condition>;
& H/ l( t6 C' _1 e! w' i (4) for <condition> to <condition> loop2 F3 h% @& M# i; I" S
<statement sequence1>;4 Q3 g% m. ?3 T+ Y. y$ P
next;
4 v, |3 a$ e, x( p3 H3 Y' X! h3中断语句
. S$ z$ H3 i+ I/ K9 M. t waituntil <condition> prio <integer expression>;
6 s/ X3 G* t) L. L- `4 p6 r3 Q! E; a" _1 z
' j) R' n: y* ~( e" V0 K' U
以上为常用的函数！
1 n% S) x! x# g I1 D( R还有很多，如有需要我把资料发到你邮箱里
0 X; u' |( x4 W+ G4 x! I9 V9 a" ]
4 [; p d$ Q H- M+ f4 ?9 \1 J
& m& B& s6 P$ Z- h# d5 \- T5 w4 L2 m4 v* t4 [! W p
' K& L/ @0 T, @8 J! {+ V" {! ]7 A1 g f
( U4 u0 x! f, A' D$ b6 F
; n" z1 K; p6 b+ n4 _$ ~/ [+ ]! q0 Q4 c: u
9 f/ `2 w; N& g+ f# j1 O/ ]* k! I
+ A: j9 q3 l! y- E% I- i0 @) r8 E" R |
|
[复制链接]
