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发表于 2012-11-13 08:48:12
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1判断语句
: Y: `$ {3 X* l$ |% J: @ if <condition> then2 x/ X' L# D# n2 | n. U* L: I
<statement sequence1>;
, z3 q5 K! F+ |( p elseif <condition> then
( s6 l' Y5 [" e <statement sequence2>;
9 D) A" O& V9 m' y5 @9 u8 R8 m else
% v; Y' y- M9 t( H1 a& W* C <statement sequence3>;
+ \5 Z4 Z9 ?# X! W5 |6 w# M end;
$ k1 ?+ ^# g; n2 y8 h# c- p如果分支比较多，用：
" v/ ?2 M; N$ @1 h6 n2 k inspect <expression>7 [- x; d# U4 X7 L$ P9 \' Q* S. I' b
when <constant_list> then! T$ i9 ?; y3 G: v5 o
<statement sequence1>;
( n; v+ Q6 k; l/ i when <constant_list> then5 s: I% G4 z4 }8 Q8 [/ u
<statement sequence2>;
. e( [( e- ~1 x0 }5 i6 |7 m/ ] ...
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<statement sequence3>;" U L) K& U. h" s
end;
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" Y5 ]. _" ~" `1 ?" b2循环语句
# }5 }* y2 [, `1 q2 c (1) from <statement sequence1>' e, @2 y2 r) I/ \. l
until <condition> loop
+ S0 G' z' x8 d <statement sequence2>;, w, ~/ \0 u9 N" M% o* L4 v
end;$ X: I& b1 e Z" X6 k: d) ~5 u
(2) while <condition> loop
! C2 w/ c! I/ g8 `% v# T; W" C <statement sequence1>;- |/ {! E2 j0 G( }7 l4 h& l; D
end;
: w( z; n: V. O/ d (3) repeat
* V! d# B# q! S+ J x# D <statement sequence1>;1 m. k4 G" Y: s. G* `
until <condition>;
: l' M8 O* n) D* b (4) for <condition> to <condition> loop7 N; M* v; p @; g4 j6 t0 H
<statement sequence1>;- D. O& V: c2 e; n
next;
# I7 t% r: d+ i6 S3中断语句4 n/ N0 d; Y& w' A( {1 v& o
waituntil <condition> prio <integer expression>;
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; q2 H% B5 u8 |+ b9 S6 A" A6 g以上为常用的函数！" d- }: ~% j( s2 U7 g
还有很多，如有需要我把资料发到你邮箱里 0 j: z! _& l' z0 X d
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