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发表于 2012-11-13 08:48:12
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1判断语句2 k+ G0 Q# I1 T9 l! J$ J
if <condition> then) v. n$ v2 M6 \
<statement sequence1>;
0 l, E5 k$ l& I7 o: @0 S elseif <condition> then
3 U; _* f1 F% b0 z <statement sequence2>;
: f. {2 D+ w8 ^( T' T else
$ r8 q8 W- j# X7 s- e <statement sequence3>;
) {4 g- d b& q/ m T0 { end;% L5 e) L; ~# E, C6 j2 L
如果分支比较多，用：
( ~+ {- V0 b! r( B) W2 H7 m inspect <expression>
# q' O& O' g3 C5 V4 E, p7 {$ q( n when <constant_list> then; \2 Z! j/ V/ O# U% y
<statement sequence1>;5 K$ i9 q3 _: e: Q9 c6 V0 ?- z
when <constant_list> then
/ g1 A2 [. U9 X( a6 e+ Q! h <statement sequence2>;
. X P7 y2 Z% `- l ...
0 D6 f6 o$ g9 y7 b7 ? else
* d1 E& N5 @4 n% r6 R1 P <statement sequence3>;
1 ^. H1 A8 O% m' G& W5 V0 N( j; Lend;
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( d! b9 G6 @( ?3 P- Y2循环语句4 G5 K! |0 c! q# y0 Q1 d" y" U
(1) from <statement sequence1>! S+ |+ D; t, V! Z
until <condition> loop
% O9 l5 T/ Q8 x9 r <statement sequence2>;
' V5 L7 h! z% Z! x2 h+ @ end;
8 Q, l& \$ w) d9 [ { (2) while <condition> loop+ O3 C7 D! J% l8 z4 F
<statement sequence1>;. R" Z2 Z6 H; K. i0 m( S, c D- `
end;
# r5 v; Y1 D$ n6 w (3) repeat
: {4 |! p9 P& `- L+ A, Z <statement sequence1>;0 i* Z. a% [$ [6 I
until <condition>;0 x8 I2 M% b5 A1 T) p
(4) for <condition> to <condition> loop3 K: S7 Q! D( n/ p- Z' s4 h$ u" w+ C: A/ `
<statement sequence1>;# W$ j; S. K1 y
next;0 G$ O3 k9 I Q
3中断语句$ z- w; H. G3 z( @' W2 M, I" w
waituntil <condition> prio <integer expression>;/ G9 o( v4 y+ z
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0 A% w2 X" o: f+ A9 G i# R以上为常用的函数！+ g; ]$ G2 l0 g" i- x& f5 O
还有很多，如有需要我把资料发到你邮箱里 " ~1 x9 O$ A* W6 b) ^( `. d! s
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