|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句) R, r2 O E( ^
if <condition> then6 P6 i: |- [: k9 f- i) @
<statement sequence1>;
5 H& S+ l# a3 x$ o8 M/ r7 Z elseif <condition> then( w9 { g( f) z' [8 D' R
<statement sequence2>;
& T. N4 Y5 l# w else - t4 s( m0 W1 [, O4 n {
<statement sequence3>;
, P2 U1 h9 b! v! F) D end;
4 P6 l, {8 z+ V0 ~ @# p# H- R7 _如果分支比较多,用:0 q9 e) u: V% B3 j" Q* P' E5 S
inspect <expression>
4 O% s! R7 y: z when <constant_list> then3 V: s/ a7 F& H6 D
<statement sequence1>;
% P7 S& z7 `- d1 N9 I: U/ s6 g0 p) q when <constant_list> then* m3 C& _6 g& {( y5 t
<statement sequence2>;
6 s$ ^1 v, d/ ?6 {+ o ...
) ?9 g8 ]! \0 G: ~3 [5 J S else
& a0 N g, Q5 X) l# p <statement sequence3>;& Y" p/ ^: b$ H8 H: m- a
end;; {7 C4 ?' d- f/ F, w% Q/ F; ~
7 V9 E1 c1 M8 I- `& H2循环语句& T7 v: m; ?% C0 T. Q$ c
(1) from <statement sequence1>
( b! A: d5 B! S6 |2 {) _1 I7 E1 Z until <condition> loop& }4 s5 w2 v! n3 z1 B6 d7 s
<statement sequence2>;) ~7 }5 @4 a3 [
end;
; s9 w, l: J7 t G+ Y0 i. m* w (2) while <condition> loop% `3 q& U+ Z& H! n, I
<statement sequence1>;! Y9 J! D" P2 X1 l& N* }2 B( g
end;" ~1 l( E6 a+ [/ F# }( V, y
(3) repeat 6 e7 e5 {% E" W( Q* I9 c
<statement sequence1>;8 `- c1 [) K j* t! F
until <condition>;7 O- N3 Z7 b2 x& `! M
(4) for <condition> to <condition> loop! ?# Q& L, N8 C4 ?" k3 Z. P
<statement sequence1>;
) h1 [6 v! ]" C( U4 A- R next;
3 y9 }2 G' |4 `: e% f3中断语句+ s+ d" t M( `+ N/ u2 T4 o1 a
waituntil <condition> prio <integer expression>;9 Z% c* J* G0 n; N& a: c; k( F
6 v6 x3 b2 r' N) i: e" X: P5 E
! {7 Z8 Q4 o! |$ J( Y+ R以上为常用的函数!9 \: m+ l( h6 r1 e4 \
还有很多,如有需要我把资料发到你邮箱里 6 ]: U; G; C2 y) f# @
4 D4 e/ ?, z" J" b
: P- n8 l1 A, i6 A# r0 O- B" U0 X: t: Z6 d! r, o
$ g7 V! p: D7 {1 H/ M
8 F7 V' k5 j5 B& F" A6 K. i7 \
# @4 _! \8 K& v3 P
[! l' O2 K. s9 v- G G2 |8 p. o( D. H( _1 `) R/ V# B
+ a7 d; v! o' Y 1 a& b# `4 f0 T' \& h1 b
|
|