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发表于 2012-11-13 08:48:12
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1判断语句, z5 A5 ^% r o' i% h
if <condition> then
( U7 t6 o6 g$ }3 H# i <statement sequence1>;/ c6 n/ `3 o3 e; y
elseif <condition> then
6 y" q5 z& F' @( J <statement sequence2>;! k O/ `! `+ H, \& y4 C
else % u H& H' F: k) L! _
<statement sequence3>;2 z. W M7 ?/ S& b n
end;
8 T6 s/ P" u0 l# M7 E! A如果分支比较多，用：
% _7 B) ?. {+ \/ a inspect <expression>: g! K7 R+ f' h, G
when <constant_list> then
$ c8 Z% c# M: A <statement sequence1>;
! r8 r# Z% T9 G when <constant_list> then
0 B2 w* `. b+ A: @2 Z! M& U! P) { <statement sequence2>;
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else6 \/ ^ c+ W0 F$ V7 I
<statement sequence3>;4 ?- K( W6 q( \; X- }
end;# c7 }9 T! h6 K
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2循环语句" j: M0 f7 m9 z h' K, H8 z
(1) from <statement sequence1>
3 \0 j6 Y! v* W M% { until <condition> loop$ T* ~- C3 m! r# D* c b
<statement sequence2>;! y4 V& _+ o% h9 ` M8 e; A
end;
) s' A- @: F- A- J' V (2) while <condition> loop$ ]4 ]6 j Y i: V1 u1 n
<statement sequence1>;
* a. d: j( W5 {7 Q* P0 v end;2 H5 H# D7 k+ z2 B: _
(3) repeat
3 [( v9 G9 u" g; J <statement sequence1>;# Y) ~" u% D+ e! W8 X8 v
until <condition>;7 X+ |" W, ~# z6 A; d1 ~4 M4 [3 V
(4) for <condition> to <condition> loop
, }" K, [% `( _$ u5 B* q <statement sequence1>;
' |5 y d) O1 U0 d" f. Y! _' G next; x4 ^; k p# U0 I* n
3中断语句
1 X* m X" s. w6 W, i waituntil <condition> prio <integer expression>;* o0 N: ~1 e- |
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以上为常用的函数！$ H; y+ s7 i5 c/ s1 e) @! e
还有很多，如有需要我把资料发到你邮箱里
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