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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& J: O# h! `7 c) i! t- s
if <condition> then/ a% Y+ f( z1 W2 T
<statement sequence1>;
" a( E6 H! z+ U elseif <condition> then
, ?0 H+ ]' ]9 W* I+ Z( ? <statement sequence2>;
6 r# i# i Z I O' ]0 w& P else , H1 s$ o" T+ _" H; e9 s; c, Y# t
<statement sequence3>;
5 T( v' \ W) ^: h& Q end;
4 R0 |* w' C* @& h4 i4 w如果分支比较多，用：
( }( g# t, K' D5 h M inspect <expression>
6 l# i- }- D5 a! M when <constant_list> then K: }6 t9 y" a. }9 V2 b' ^
<statement sequence1>;
" P$ F4 f5 T4 l when <constant_list> then
2 |6 M& S) S2 d <statement sequence2>;: ]5 E! i; i B2 {# `: P& m
...4 f2 k" T: F9 c
else5 f' `' C, ~( @% o+ E
<statement sequence3>; Q4 q: `' X) m% f* E$ X
end;
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2循环语句
! V4 @5 d7 a* |6 d5 q (1) from <statement sequence1>
0 ?* H' h5 D' v& h+ Z6 A& Q until <condition> loop0 h. i7 O% m) a: w8 B4 s( S
<statement sequence2>;+ y; m+ C% u9 p& i
end;9 b( W3 h3 \4 p" D( z
(2) while <condition> loop6 @! G1 Q9 ]& p: ^
<statement sequence1>;
' o3 T8 \$ ]4 @3 h6 J( g1 W4 t end;2 `* h5 _* Z% [! e; Q& ^% r, G. L
(3) repeat 4 v, s& f2 f! h* C& a, p. z! {# U" q
<statement sequence1>;
/ k9 F/ ~, b+ v* o6 Z until <condition>;0 B# S. l+ @2 D! c
(4) for <condition> to <condition> loop
$ b% \$ A% A* n* ]/ b <statement sequence1>;5 ?/ [+ m1 C: g4 J: D) v7 B
next;; [: `& [2 q) F. ^% g1 w! L
3中断语句+ U; N2 Y( L/ r0 x+ Y ]
waituntil <condition> prio <integer expression>;3 Q- r) j5 r0 G. F% h* F
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以上为常用的函数！+ T5 T& S& N8 e( o' ~9 o" A* J5 N! `' V
还有很多，如有需要我把资料发到你邮箱里
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