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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
% O* E( c) S! P8 u( Y- V+ R if <condition> then
- q3 j$ s* G2 @% S- ` <statement sequence1>;
2 D9 t$ ^" y$ |& |" u elseif <condition> then% h I6 v; c: _/ E' \( j
<statement sequence2>;. l4 m' g+ d! n* B9 {) g
else
Y+ v$ r. H8 u d U/ g. ] <statement sequence3>;
1 ^+ C, m% R2 r0 {/ ] end;% p% i% Q y ]. w# O. N$ |4 j1 R
如果分支比较多，用：
P5 b/ v: ?0 W inspect <expression>% o4 S9 g1 J G' v, ^3 U, W
when <constant_list> then' p7 Z' S! |; p# n0 x& R& y( P
<statement sequence1>;
9 i [) \. {6 l- D+ z( h! i when <constant_list> then
# t9 {" V: }- _3 V. } <statement sequence2>;
6 Y# v7 D$ u! _. L ...
& Z6 }8 S& i* t+ g& Y* e* R else
! L1 d5 v, W P e$ [* U9 E3 G <statement sequence3>;
- S( M) B0 }6 z- bend;
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2循环语句
# d2 c; Q7 N* u8 P7 }- @# B' D (1) from <statement sequence1>6 S1 r/ [4 v2 R/ a% p- R+ l
until <condition> loop' y) s# H" B' j& |
<statement sequence2>;. O: `8 u* P: ~) J9 N
end;
! ~/ F, r1 `4 ]) s7 A+ n (2) while <condition> loop
, h' S! Z8 |) n1 q; E( p/ y" J <statement sequence1>;
3 R, h- c9 ~& e) a+ u9 n% k end;
5 r/ [. T+ h5 m' ~7 n (3) repeat
- D7 A& d# j# v: s9 B <statement sequence1>;: p+ P+ }' Z# M d% @( A6 w! m
until <condition>;
# \' c& B# x) F' N" `9 W% t (4) for <condition> to <condition> loop* X5 X: p8 p$ N9 z- r, d! T4 g
<statement sequence1>;9 z1 ~. B2 Y5 N2 U
next;' b2 S8 O+ }( r( ]- B- i B% j
3中断语句/ Z. F9 |1 k- ~* x
waituntil <condition> prio <integer expression>;8 N9 R4 q% E4 ]+ V# v
! T* r: y; y& t
5 M# y. b F4 ~以上为常用的函数！
. `+ H/ k5 Y+ \/ [$ h, S- f* N还有很多，如有需要我把资料发到你邮箱里
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