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发表于 2012-11-13 08:48:12
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1判断语句* F: K" {1 a2 i: Z' n1 B
if <condition> then4 g3 g, H1 x5 z! c# ^2 f/ P" P
<statement sequence1>;
1 K1 K6 O6 u9 s: u2 \ elseif <condition> then
8 I2 z D6 x# o <statement sequence2>;) R+ j3 o- V+ b9 J
else
& N" I9 g% o' |+ C1 R: p <statement sequence3>;- a5 _9 u# ]; c7 v! d
end;
: G! Y' l3 M2 b) |如果分支比较多，用：
% V! A' Q5 c7 k5 f# X3 _ inspect <expression>
2 s" [, S, u/ z5 v9 Q. H1 }0 Z3 w* q when <constant_list> then
- p# |9 Y1 K/ z1 t' J1 b <statement sequence1>;5 {' a/ M4 A9 s" z# [) G0 I0 L
when <constant_list> then
, Y6 d4 t/ D: l" M( I <statement sequence2>;: a& h: ?, L! X
...5 m( e- |9 O# M! i
else. L! E) o9 \; ?+ p0 K. Q5 F
<statement sequence3>;0 w4 O' b" f8 p* `1 c, S4 {
end;
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2循环语句+ _0 S- q" _/ k& I/ U
(1) from <statement sequence1>. x' m; I4 ]6 a6 k7 ]% K; M5 U6 w+ G
until <condition> loop
G6 w6 Q% [. e1 {* _9 L4 M+ J <statement sequence2>;
6 i7 S- W! ^! A. b end;: I: b d1 k4 k
(2) while <condition> loop
1 Z' P# g2 X2 Z' t' i1 |/ q% R <statement sequence1>;" Z( B2 Y' }- i2 P6 m3 ~
end;
1 h+ p a- h* g) g9 x9 } (3) repeat 3 ^4 g# w7 O- W9 p E9 x8 {
<statement sequence1>;; I! c4 q( u1 q9 N7 B) k" r
until <condition>;
1 P8 t# a+ L5 g/ n6 D0 D (4) for <condition> to <condition> loop
/ w9 r4 A& H6 L" v <statement sequence1>;
5 L: l, j6 d& ~4 e1 Q& ^+ m | next;- L% W) y) n5 s7 N
3中断语句8 C2 V; F6 t0 p9 ^
waituntil <condition> prio <integer expression>;
, }% F1 U( r6 }1 l8 H# x+ B9 J' q+ c0 \' `7 f1 h
m% ^# b% c U5 j6 v
以上为常用的函数！
3 X5 ^9 r7 ^1 }5 E: O% l+ d" c# l还有很多，如有需要我把资料发到你邮箱里
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