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发表于 2012-11-13 08:48:12
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1判断语句% w) f6 z8 p$ [! C, \# T& Y
if <condition> then
4 t! t+ E4 A# o2 Y' @ <statement sequence1>;+ ^/ C% Z4 O" {) }& _
elseif <condition> then
) y* t: O; V' q <statement sequence2>;8 f+ _# \2 X7 S4 W
else
# x: G5 ~7 I+ P4 [ <statement sequence3>;
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如果分支比较多，用：
. K0 s7 l- R9 Y" c5 P( @8 I ? inspect <expression>5 B# P! x4 T9 m7 y' U( B* R$ H
when <constant_list> then7 a) x( H( W) G+ l, U4 y& J }
<statement sequence1>;- y9 p& B9 N; g, o5 p7 q
when <constant_list> then
/ z( e) E) r5 O <statement sequence2>;8 A) {: z' v, q
...
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<statement sequence3>;: M5 n8 q1 P1 \, j: l9 B: y
end;8 G. J1 b- q( t! G: t
3 ~% o9 B/ R7 n v: `2循环语句; `7 r4 s/ h# B5 u& `* `: h
(1) from <statement sequence1>
5 Q' j* s* Z& g$ R, [; L until <condition> loop
+ T& i- M# [$ N; { <statement sequence2>;
! F% H4 T1 e) M. d2 n( d: y, H* Y end;, [; h, [. v+ x. {4 m
(2) while <condition> loop* |6 @. S1 ^9 @( x4 {2 {" _# S
<statement sequence1>;; t# K& r* n6 g8 d5 F- r3 t, P
end;2 ~# h5 W* B& O" D9 P& J" a
(3) repeat 6 ?& ~1 z4 w8 I0 h+ W! c
<statement sequence1>; v+ z) s, `% ]( l2 x: {
until <condition>;
3 r l6 T$ ~$ g* a& h' U (4) for <condition> to <condition> loop
3 |$ k5 y P4 b4 `% ]6 k/ ?1 p5 t <statement sequence1>;
* T$ U) Q* `0 r' p; q' C next;' |( `$ D' O+ X
3中断语句5 L+ M/ v# Y1 T. ^
waituntil <condition> prio <integer expression>;! v3 N9 j; @1 x1 {; z% A" h
4 e- H$ {5 v# J% k y5 o
k7 |5 ^, q6 q0 K以上为常用的函数！2 c5 O0 H- M5 W9 r: U' m* y
还有很多，如有需要我把资料发到你邮箱里 2 B. k0 A6 e1 ?) u" j: @
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