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发表于 2012-11-13 08:48:12
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1判断语句* G& B: m( o4 O: m! t
if <condition> then
7 d, e3 P3 U* Y: x <statement sequence1>;
) x1 t8 h a y2 @; ^1 Y) e+ K) {2 | elseif <condition> then
9 B! d0 u6 g! a& s" ]' o( b, @ <statement sequence2>;& {5 Z4 `" j! k" \" k# f$ ~
else 8 V7 L1 J& ]- N8 J
<statement sequence3>;
. z- ^/ S" y& K0 l& f$ _ end;
* u+ G' b7 P/ _( n% B如果分支比较多，用： c$ d- q! p4 q* @* D _& f- \
inspect <expression>
[' W4 c) e. Z7 i/ L$ S5 g when <constant_list> then
6 X; c( A# z" {+ m1 h: x& e <statement sequence1>;7 n3 m/ n) p; K0 f" G& n
when <constant_list> then
) N, \! ?$ ~ j6 H <statement sequence2>;( E9 v# R7 w4 W
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else
5 i) a' h5 R. F4 j/ G. N: g <statement sequence3>;% f: T; d/ g) f; m! K
end;
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2循环语句
( _+ |" j7 _- Y- B2 [( P (1) from <statement sequence1>
; f" Q4 u2 B: V7 D until <condition> loop
: ?% m. r2 x% H. R, f' ? <statement sequence2>;
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(2) while <condition> loop
9 g s3 H4 V1 i <statement sequence1>;- E4 p) r5 R. W+ S2 Y; P
end;
+ N. e6 r) g1 |3 W* i$ C3 k- L (3) repeat
P$ v* j. m+ l3 u* G+ o <statement sequence1>;
/ ^7 [" l: ]1 R# I) _8 d# I' z$ P until <condition>;8 D% @8 w$ E: m
(4) for <condition> to <condition> loop; L W! H/ l1 D. M, c7 _
<statement sequence1>;
8 y4 Y+ [) {+ K7 o2 Y next;" Q0 f% {) b2 X0 e$ ]+ b v
3中断语句
$ m8 _0 i; s9 O! r9 k1 q7 m( G, { waituntil <condition> prio <integer expression>;: B) ]0 f% h! T* _. X9 `
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以上为常用的函数！; G* O0 w; O5 Y" a
还有很多，如有需要我把资料发到你邮箱里 $ A; C* q6 v3 ^+ }7 i. m j7 E
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