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发表于 2012-11-13 08:48:12
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1判断语句4 N, ~9 k9 `) a5 [! d
if <condition> then
$ I' \1 ^, I5 g$ Y" c <statement sequence1>;% n0 ~6 c7 M% ?& s# f3 @9 r3 l: y/ Y
elseif <condition> then. m$ N. R$ i; O5 Z% R6 t5 V
<statement sequence2>;( N8 S& n2 |# Y5 `5 R
else $ ]5 R0 i3 e) y
<statement sequence3>;
3 r; ^! _2 H+ E5 ~+ f! E2 [* [ end;
0 J- ^; R' t* o; K, }# U' x6 y/ m$ t如果分支比较多，用：% G1 M U9 Q7 @6 L: o2 j6 q
inspect <expression>
& d1 E ?& x- ^' H2 J when <constant_list> then
4 o* R; [% y( K( m <statement sequence1>;9 x$ t" H+ n" V, Q4 A; D- Y
when <constant_list> then$ l. m# D5 E% D Q( h( c n+ }
<statement sequence2>;
7 w1 K/ v5 \+ j6 c ...
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<statement sequence3>;) v/ L0 [+ I( ~! O1 s9 M& U. n
end;- B* z) G- s* |) L/ `3 e+ |: ?
7 d1 _! a/ q+ p2循环语句
4 r p& S& E: p (1) from <statement sequence1>0 j! e( p7 ^3 O/ O3 @3 A* |5 y
until <condition> loop
6 X. Q5 \* Y7 ~' Q8 ^0 F: K8 b <statement sequence2>;
8 ?2 N2 c5 R: ?# R end;
, W% v! @* |$ x/ a (2) while <condition> loop
$ z S2 n( ]6 C/ D/ K3 s3 [4 l <statement sequence1>;& s1 G' |5 T4 a+ V0 a( j
end;
5 j5 f' W$ J0 X: X' L; Z6 u (3) repeat
8 }) J- T& C0 B n+ u <statement sequence1>;
9 a% i$ Q5 T/ f( r until <condition>;: `) b% b3 @9 I; V2 ]( v
(4) for <condition> to <condition> loop
! ?, W$ c+ M& L7 D8 Z <statement sequence1>;& d- m# J& d! W& ]- W, P) _
next;
% h" {- n& Q: l( q; F3中断语句
$ u5 o( I+ D+ t" r% @ waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ X2 C( F6 t8 }4 N8 `9 Z
还有很多，如有需要我把资料发到你邮箱里
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