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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' M; W& o8 e4 V3 G1 U* b if <condition> then
& ]; n2 ?) z$ h5 W0 S <statement sequence1>;
6 x) i% X1 q3 N# |+ m$ p5 s elseif <condition> then
/ i+ f$ W4 e) s1 E% L <statement sequence2>;
6 n8 G* n; f. _# s else ! b# b# {& `/ E D! ]; `; I
<statement sequence3>;
( J* `. s! c" u0 N' D# Z; X! c* ] end;
/ v+ M# c \1 G. \) s如果分支比较多，用：4 Z7 r2 j4 `0 A/ D( R
inspect <expression>
0 m: _2 Z) p9 |9 R! ^# v+ i when <constant_list> then
' G1 q( \$ @! b* P; m <statement sequence1>;- b2 h R: p" H, B
when <constant_list> then
0 f. G p. a G, Z1 x# M <statement sequence2>;" t5 W) m4 e! N* I: _
..., n) C# J% s( `; U, ]* i9 Z: B
else5 L2 c' i) B V: T- ^0 n
<statement sequence3>;; ?3 H' ~1 Y& k. {
end;
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2循环语句
" k5 Y, {& Z- W8 s (1) from <statement sequence1>2 R6 @# D* K& {- J$ Y) d' B
until <condition> loop
/ Q, u' J& E, z+ \ <statement sequence2>;
& U! Z. c& y9 z" S8 u& t end;
9 o( o. I9 T& J4 m2 ^8 R: j# A4 E (2) while <condition> loop
* ]: [0 J- G* u7 W+ E% x$ e' } <statement sequence1>;4 G( G; v3 @7 x2 w- v* m. @3 X: E
end;6 e2 o$ K5 [ t* }" Z4 T' a
(3) repeat . k. \, s- ?) K+ a+ |
<statement sequence1>;
( E. A. ~6 B3 }- v until <condition>;. j8 J1 W+ _$ V4 u! @0 N5 O9 w
(4) for <condition> to <condition> loop
! h5 n' p) I3 n9 o <statement sequence1>;. l/ K% A" j( E( c9 t
next;
4 T i: {* r; L' R6 |9 N3中断语句' p# h) q1 o1 _4 `& Y& d
waituntil <condition> prio <integer expression>;
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以上为常用的函数！! o# i% n# `4 _
还有很多，如有需要我把资料发到你邮箱里 ' W2 a/ t n1 e8 l& \/ n# c; V, x/ y
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