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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
; Q9 i: x+ G) q" D. k if <condition> then2 e8 `2 a- Q4 T9 y, \; u! V! M' O
<statement sequence1>;% e+ D% V4 H# E a- T( _
elseif <condition> then
' _4 _/ L+ g- t. }9 k/ d <statement sequence2>;
8 r' E8 }. c; B8 ^% {. g1 n$ j else
4 g5 W7 n4 z3 }2 z r <statement sequence3>;; s$ @& g7 y$ _' S5 r/ I# ?
end;
6 _# U% k# M2 H1 U) N2 G如果分支比较多,用:" A2 c& a2 M3 [5 v3 k; w
inspect <expression>
: ?* C- L7 f2 D& k7 P& M) O when <constant_list> then$ y7 L9 {; U5 Z$ f; [/ h
<statement sequence1>;
( K, R4 K7 ?- b: D when <constant_list> then
+ t) v% N! ?6 Y2 q; P9 e <statement sequence2>;
! |1 }+ Y4 a# h b* \ ...
, j/ A. x, h" ]# K4 J8 d2 V: c# \9 U. z else
5 ^( b- ]) Q/ R$ D <statement sequence3>;
5 D! r# H5 I2 c) P% Gend;. F' m3 r% e; S
- Y( }5 u* G" k& N+ l2循环语句
0 B1 O' T9 a; w3 }) {8 `4 T4 r (1) from <statement sequence1>2 A, I" z- U) v$ x
until <condition> loop
1 w8 S) e- t* u7 n <statement sequence2>;7 v' @9 q9 r# c8 L
end;
& q+ I3 h1 W3 i% K) y) Y1 u (2) while <condition> loop
$ U1 a- q' Q7 B6 M <statement sequence1>;# K9 l7 v6 B3 N. Z! `
end;' c: M% \ x8 J' D: h8 J
(3) repeat 2 A, Z3 C' [ A# x
<statement sequence1>;
/ i+ ^; N. M# X! d until <condition>;
* I2 E# b# ]- p* E (4) for <condition> to <condition> loop
1 J' s0 V$ |0 {2 D6 p; e <statement sequence1>;6 ]. N8 t3 t1 W! D8 I) _6 a+ @
next;
1 Y2 P% K, Z; A9 G3中断语句
4 N$ I. N5 W5 }# i5 H3 P$ A waituntil <condition> prio <integer expression>;8 p# x' f+ Q0 d& [* k8 n. z4 G( y
' ~, ?6 a; o2 F! u/ e+ a6 f
. n4 F! O, o% Y1 J% f$ y- D m8 o以上为常用的函数!' ^- \, X$ s: \0 n W
还有很多,如有需要我把资料发到你邮箱里
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, i) ~- a/ r. _) F4 F6 O, c& M V5 n) }: P- Q0 u& w
. X! @' H" J0 D. w! o5 \7 s
" H4 `" A. f1 N3 e5 `$ J
9 V0 N5 b7 c* H7 X! k
w. l: K! S' i7 L' [ e- a- M2 X# U2 O* r
0 S* J! ^$ z5 r6 z8 k7 U - k" U- C/ J/ o, {/ y8 W- F
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