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发表于 2012-11-13 08:48:12
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1判断语句/ f2 p6 V) Z" X6 y# T" p7 G, h
if <condition> then
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<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
, s# p8 y. V7 @ E V' Z7 e- l. U2 t inspect <expression>
/ A2 W3 i4 V5 o' N- D when <constant_list> then+ H' E; b/ |4 S
<statement sequence1>;/ C( ]# G# c0 o1 t
when <constant_list> then% b; V8 Q6 z0 E! M- C1 d
<statement sequence2>;0 b5 C% Y0 m; X2 U' @" c
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else
; x9 C' U+ F) e9 Q4 |, Q' _/ m <statement sequence3>; x- p" R, a% a( J, z" _
end;1 X5 [) d; }# K$ l" L; W8 D& t
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2循环语句) ?7 a) h+ b1 J( v
(1) from <statement sequence1>+ l. C0 P' p& H/ s6 E
until <condition> loop
6 Y2 _* }6 Y0 D! D7 V/ J0 Z <statement sequence2>;! P7 \! `3 f* u: x2 F
end;
; L0 d) [1 y. k# f* W (2) while <condition> loop; }% v! ~1 O9 G- M% l5 f( `
<statement sequence1>;' J( Q- Z1 }' w7 P
end;
$ L/ J& P! H9 u (3) repeat - K3 J% s Y6 `4 C: G1 z
<statement sequence1>;5 O: B5 @1 a$ Q- `
until <condition>;1 D6 ?3 G1 K" Z
(4) for <condition> to <condition> loop
. p5 o: h& R9 U& i! P6 B <statement sequence1>;1 e) V$ i- I$ J; [8 \
next;
9 t& @$ K$ L5 T/ S* }. t) m3中断语句% ?2 r9 E( k* N% V2 R+ z) @& k0 n
waituntil <condition> prio <integer expression>;
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1 r- ^; `- Y" U6 i4 e) ~6 v以上为常用的函数！0 B% ` n! O1 E- [8 H
还有很多，如有需要我把资料发到你邮箱里
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