|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
6 |6 g: Y+ D7 E. b* G2 b K! \( O( n7 Q$ d if <condition> then
- R2 ^1 t( z9 T% @ <statement sequence1>;
; _, U b* k, P& ^* y elseif <condition> then
& P' {- T6 D/ H! q: n5 f <statement sequence2>;4 d2 |* ?( I0 J- E5 k( I0 E
else
" X' H# Y6 k7 Q! r <statement sequence3>;. B; v- q' N" \4 O( B9 v
end;) H; M8 f9 _- c& c: f; o' |% ~3 c* E
如果分支比较多,用:
8 ^! s8 @# Y& g [+ W! I inspect <expression>/ H1 G" K5 b: F5 \8 ]& w" u
when <constant_list> then, I, A8 f0 `7 {" }& H) F" G: i
<statement sequence1>;
5 `5 E1 w: ]: x4 Y( W; i! Y9 M when <constant_list> then7 l" l/ C* A& V7 M& G% n/ `
<statement sequence2>;
0 B0 |, d2 M7 d, o ...& a9 U7 ?0 z/ v) u
else
0 u) H) m% T! y2 _' v <statement sequence3>;
/ j! j6 K# K) B( v) O4 xend;
# B! [) |) t2 ~/ U9 O
* D% o% c; c+ A1 c2循环语句
X" I, m/ z+ Y! J. y (1) from <statement sequence1>
o! N2 o& r) Q( f, ~ until <condition> loop& k0 d! H8 i; M; n
<statement sequence2>;6 \$ w$ o; E5 N
end;0 j, z5 U& _9 M
(2) while <condition> loop
+ T. X7 L4 |, d1 i <statement sequence1>;" `, r W; |% v. ~# J
end;' K4 k! M; [# S1 M4 x" w+ U" G
(3) repeat : |/ ^4 ~6 ^+ h1 W/ i" i1 m# `
<statement sequence1>;. _8 D, M5 c9 v1 @! y
until <condition>;
/ H# H& y/ v' }- i6 }8 H (4) for <condition> to <condition> loop. @# D: G" x0 M7 y: ?) t! p6 _
<statement sequence1>;
4 U) T# |0 {7 A! _ |1 T# a next;
+ U J/ K% }5 x5 B/ l3中断语句* O6 ^: @6 I+ o
waituntil <condition> prio <integer expression>;
5 t: e# D+ E1 H; |) \+ q6 B8 H: x) B
/ v7 c8 X e% Q x# m' q" n ?2 S6 q% S, N& R! O9 `
以上为常用的函数!2 \0 A' @6 c2 r- j
还有很多,如有需要我把资料发到你邮箱里 8 M2 C8 p) C, g7 W
8 i" O1 q: d7 n1 |9 e1 g
l8 }: F; J- T, J' n
) u! u |3 D, e0 V
' Z# P% b. Z5 s2 h- }7 P) s& W
4 O3 z) ]9 |6 J
# Z+ F" D' I& H0 e+ j; z3 C% `8 A5 P! B: Q) N
- ]8 ~. _. r, u8 ^4 ]! H5 Y# ]0 K
; f) |# f& E* a( v
- B# a$ L6 S2 b | |
|