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发表于 2012-11-13 08:48:12
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1判断语句( l3 ~& |; ]( i
if <condition> then- \ j3 L/ g9 C' N, G
<statement sequence1>;- K1 {# k% A* \ [0 \: @( m6 x! v' r8 E
elseif <condition> then
2 Q+ a7 x }/ m( p9 ^ <statement sequence2>;
& o6 q: b Q1 S8 ^% n& f else 6 c: B1 P4 ^- U8 }6 G8 K/ [
<statement sequence3>;
, G% j4 p7 s( F' B. N end;0 l* j+ E/ l4 _2 F$ I) C z
如果分支比较多，用：5 H2 d5 s+ I7 W) h( h a$ y% M. `
inspect <expression>
4 i) X8 H& [& p when <constant_list> then
5 R( k/ k. _" @, H, k* g* H <statement sequence1>;
: V. D" I. j; K& S& f7 \5 L when <constant_list> then4 R1 r5 i7 ^& x+ R5 `' _5 ]( I
<statement sequence2>;
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else
# p/ H* ^6 S/ U. ?* i8 F" d <statement sequence3>;5 |8 U! r$ D$ D
end;6 h9 k3 l/ v8 q E4 E* g _
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2循环语句
! l% w4 }) s R; p( u! ? (1) from <statement sequence1>
3 x% @- i/ A& W. p/ m8 p until <condition> loop- e. T4 _7 C1 q' u
<statement sequence2>;5 W; x: M) ?) S* f4 _
end;
' J& E- r: b5 p7 C8 X0 V' } (2) while <condition> loop9 `, o. x6 e9 o/ k. s8 ^, N
<statement sequence1>;
/ @9 u* R8 |) t end;
, o; a4 w0 A+ e (3) repeat
2 ]) L& C9 \3 X/ r: a) u: T* } <statement sequence1>;$ D/ ? }; u; C4 E
until <condition>;6 N: C5 a5 `: k0 x M3 }8 d, g6 X
(4) for <condition> to <condition> loop/ O5 c& Q$ ^. f
<statement sequence1>;# n; p$ }- w* _& @+ A, r) H
next;8 ~4 i$ M6 H7 i6 l
3中断语句3 l$ ^; T9 p C
waituntil <condition> prio <integer expression>;
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" s4 q! ?9 o6 C$ a以上为常用的函数！
4 I/ `5 ]; G* a5 i- S( K还有很多，如有需要我把资料发到你邮箱里 8 E' c8 ?- X# T+ c1 }
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