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发表于 2012-11-13 08:48:12
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1判断语句% j# H5 B$ L" R
if <condition> then# B4 c) S; G& P5 y, t
<statement sequence1>;. I" W3 E0 h. E$ o0 Y8 O; s
elseif <condition> then
9 K; J: T; I1 D j <statement sequence2>;! U) ?/ ~, H' x- O
else . H# |5 ]% G. \ Q& k$ L2 n9 M, C
<statement sequence3>;
# ~( ]" N& ]# S8 O# u y end;
8 R6 S, H1 N# f" d! U$ ?' Z, |如果分支比较多，用：# i" E1 c w$ R' v
inspect <expression>
7 k, V4 ~7 b* v1 q& Q( A when <constant_list> then" t3 T& F3 B( E0 x# k' O
<statement sequence1>;
* E! U* V0 U I" |" K when <constant_list> then
& p% ]6 `( K6 g0 ^- G& k& H% b0 {3 l <statement sequence2>;# c1 `5 u3 b% y. l, e% ]$ G
...; ?: U3 w& ~ J. g
else: t+ r" [" [3 w/ T K
<statement sequence3>;
9 H* C# X3 @5 w! R9 z4 fend;
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2循环语句* n5 h/ K6 ?# @8 H
(1) from <statement sequence1>: X0 `( C3 |: q- _! b7 b
until <condition> loop! f7 z8 x' |* W7 L3 ~' Z+ P1 r
<statement sequence2>;8 q) u# c- O" m1 M$ V- V f u" t) U
end;1 j, ]6 I7 r( v4 ~; {
(2) while <condition> loop, ~4 ]! q/ N6 Q+ ? Y7 C! @2 s+ D- w
<statement sequence1>; a$ r' r: R% n9 o" n
end;! _+ E) A2 Y# \$ @
(3) repeat
) R$ _/ c" G2 q* z& `) R <statement sequence1>;
; j& K9 w, M; \+ ]7 d2 J until <condition>;: E5 Z) e+ w$ |& E1 ?+ J
(4) for <condition> to <condition> loop
: ?" k8 a1 o( p |9 z) Q8 ^3 C <statement sequence1>;
+ i( m: }- n4 y; l next;
" z# ]: _) m9 }7 T, L2 m+ {" ^3中断语句* G) s; A- x. x5 m* H; c4 W% g b% {
waituntil <condition> prio <integer expression>;% N& k2 Y: n; H, ~' t
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以上为常用的函数！& q0 B1 ` w( I2 |& f
还有很多，如有需要我把资料发到你邮箱里 $ ? e5 k1 g; O# L% z" @% W
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