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发表于 2012-11-13 08:48:12
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1判断语句6 Y/ V8 o% ]0 w" b; T
if <condition> then
/ M- S3 N$ ?: b9 H5 T& Y <statement sequence1>;
4 p$ C4 `$ x# i: j% E elseif <condition> then
. g2 j; r& d, `! K9 _ <statement sequence2>;
# H# [& |& Y3 u9 o4 N else ) g7 p& t" q" `* y. d6 b
<statement sequence3>;, B6 l" `" ]* t. U
end;8 y, ^, _: x. H2 q" A+ w/ t
如果分支比较多，用：6 o; d- b7 ~& f* {0 L e, ^
inspect <expression>+ q F+ f+ @9 z0 D
when <constant_list> then
3 W7 u9 G0 }" q+ i) n2 H <statement sequence1>;: \# T% J$ w" N! b2 a! ^
when <constant_list> then
; ~- F; S7 ~# J9 v. z7 s <statement sequence2>;
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else
, W, ~ d2 L z2 H" I- T <statement sequence3>;
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2循环语句
: z/ g7 B5 C- S# s( G (1) from <statement sequence1>4 p8 d) _4 ]4 m0 R# z2 Z. Q/ \
until <condition> loop6 s. a y' _& k+ X" |
<statement sequence2>;+ _7 [" A$ |/ ?% G
end;# w0 K/ b; T6 A$ ?* j
(2) while <condition> loop
$ b* Z) k& a m+ ?( x/ m/ q) E- X <statement sequence1>;
9 ^2 s3 }2 e" z1 s: @ end;
% j/ w2 o' x, p- ]1 _0 r (3) repeat / {: C& E) {8 z$ P& Q' {; X- l) b
<statement sequence1>;% o5 a; o) N- R1 Z( t* u, y
until <condition>;
, u. K0 @5 T7 c, O4 J- l8 P) k (4) for <condition> to <condition> loop7 V2 U- S& ^# U: P2 _& n
<statement sequence1>;9 D% A& ]2 k/ q: X7 R1 M3 @/ s
next;
( S% U# J, Z5 s, b/ k3中断语句
, a5 ~9 t: T n9 y7 p6 Z/ {! {/ c waituntil <condition> prio <integer expression>;
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# j* h# W& h: y以上为常用的函数！ k. B% k# Q) u
还有很多，如有需要我把资料发到你邮箱里
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