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发表于 2012-11-13 08:48:12
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1判断语句& R3 A0 n* A6 V& I& J$ G+ c
if <condition> then
8 X* n x0 n# i* a <statement sequence1>;9 V1 J! G( s' h7 O* [% |. C
elseif <condition> then
6 r7 m* L6 j3 T" ^% Y6 z <statement sequence2>;, `; q* X0 \2 T& e' f
else ' ^+ a+ W" H$ I# |# F# [ N
<statement sequence3>; A6 l! v2 a+ c# @/ W
end;
2 B+ z, i: E3 @: W* Q如果分支比较多，用：
% ^2 R. G/ b7 }: d- k5 z9 L inspect <expression>4 h) D7 m g' Y C: R
when <constant_list> then! j8 d; K. M. u5 W' Y4 j
<statement sequence1>;
8 b5 P8 h+ E$ ^& L) v5 Z when <constant_list> then+ B$ i7 P! R0 o7 r2 G6 G$ B/ A
<statement sequence2>;
. A8 U8 F8 x$ E. p ...
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<statement sequence3>;6 N% r; d' D- Q4 C3 w: p
end;1 i# c2 R* @/ g
% a7 g/ z3 a# _3 X6 u2循环语句& T1 {$ s) {" w$ K
(1) from <statement sequence1>. p1 A7 A5 {; b$ n
until <condition> loop- Q7 o1 C* b1 ~# X( E0 J
<statement sequence2>;
?: B3 j W0 K end;
; m3 B, J9 a0 v9 @# R# o (2) while <condition> loop
6 @8 O/ f6 @( ^" ^ <statement sequence1>;9 n+ ?5 ^1 B7 J/ s, o" l
end;
4 c2 H' O8 Z0 z (3) repeat 6 K! m6 u% X Q. U
<statement sequence1>;+ U& y$ \, \& A) q z4 B
until <condition>;; M" Y2 ?# ?. T
(4) for <condition> to <condition> loop
( h1 C, ]7 m- [ h; E <statement sequence1>;2 ], i8 u, e& ]5 n8 i
next;0 d/ D h" y3 o; L
3中断语句, q; @# Y( a' p/ w) k# t- W6 E1 m
waituntil <condition> prio <integer expression>;
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I9 @4 z3 ~ r3 w& d2 E3 T& ~以上为常用的函数！# p! E9 N+ L/ c& d2 q0 I8 Q% V" J
还有很多，如有需要我把资料发到你邮箱里 & p; V; T7 t3 ~8 J
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