|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
! [7 G7 p v/ ?# s0 _ if <condition> then$ c5 T* {! `/ r8 Y# l2 v0 g
<statement sequence1>;8 h4 b3 a+ ]6 y: J# d/ j
elseif <condition> then
2 \6 z0 j6 b# B <statement sequence2>;
, C3 D0 f1 n- B! U4 s5 z else 0 E- R- W+ [; z9 G; I
<statement sequence3>;
; d/ F, z& ?4 R' `8 n* T" H end;
* L5 M2 h: _/ f8 H, T9 `如果分支比较多，用：
+ }6 T: ~) f3 q inspect <expression>
+ G+ f/ T; c0 Z0 |$ ~% n when <constant_list> then
# d0 u4 j N8 Y" w4 ` <statement sequence1>;6 W$ }1 E, f( `( m, S' f
when <constant_list> then# u" T% D7 d" E v/ e
<statement sequence2>;
$ L3 s3 \$ y5 I: Y2 V ...* I/ h5 E) V1 l, J% a$ c" }" G. d
else; r- ?# O) V6 S* @" s( Y
<statement sequence3>;/ t4 P$ y+ E. |5 W' X3 |/ _: i3 X5 j$ {
end;+ L" p3 |+ ]; T! \) r( {# R
3 P; W# l: H! P& ?$ I" E2循环语句
. k$ S* Z4 u/ v. ?4 E (1) from <statement sequence1>2 R% m4 v k. U
until <condition> loop$ }" F# f: o s" Q6 K7 j2 x5 Q
<statement sequence2>;& V% ~ D+ @# { Y! c/ o5 Z% k
end;
0 H' a0 c4 Z" E* F7 [8 D5 Z (2) while <condition> loop3 Q( g2 |4 t8 P( [% t4 E0 ?! h
<statement sequence1>;4 m( f( q* ], K5 w" o/ i) T
end;1 M- s# ^" M- Q) P
(3) repeat
: v7 k7 p6 V) _; k8 p4 w. d% g <statement sequence1>;
{ J8 X# ?/ ] until <condition>;9 a' C8 a5 n# X& K4 c- F
(4) for <condition> to <condition> loop. A$ _. O9 p2 K! D& a' ^4 \- x
<statement sequence1>;* O/ j7 c. B2 B; t! k5 O, O( g' h+ \
next;7 S& r" _/ G' K% y6 M
3中断语句- Q- C" h. ~* Y$ K, @ N5 X0 H
waituntil <condition> prio <integer expression>;: ^8 F: o. u$ v
9 ?: {1 x/ }$ \ y! d* ~( \8 f0 W1 H# K* R2 C" ]" ]* R; X
以上为常用的函数！1 @% S- B9 p9 e9 E0 S
还有很多，如有需要我把资料发到你邮箱里 9 J g% o1 d |/ x* ^
8 g7 `$ t& |5 r3 }3 x5 q( _$ |5 H) a: m$ ~
7 w9 `+ j4 f6 w
9 O( N' A; R; b& O/ q) _0 R S6 B# P) [- o6 @* C3 t9 l$ w# N
) @$ p6 C1 n' R6 W. M1 W
/ U# n% @, [4 q6 p$ j$ {2 G
l! ?+ S4 M) V. k4 L2 W! c1 ?% k# a+ B0 ?6 {
( o4 Q( `7 r: w$ y$ x- Y& j6 E |
|
[复制链接]
