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发表于 2012-11-13 08:48:12
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1判断语句
, {. A& V7 U7 N8 g; k3 U, f6 }( B if <condition> then
. f. i% H2 ]9 @0 J; Z <statement sequence1>;4 h# D7 L; ~! t8 P7 L3 r1 `
elseif <condition> then/ l3 J( S( F8 S* a" k$ a4 s: I
<statement sequence2>;
* W, _8 F- H+ t; x( b else
' f, i- g3 n% l/ R% W# Z <statement sequence3>;
5 I- w& ^3 q/ y# \ end;( B C3 l3 A3 I3 q6 d
如果分支比较多，用：
1 n+ m/ t, q i6 E. k inspect <expression>
H+ U- z K* L: _: [ when <constant_list> then3 G4 A( w, b c
<statement sequence1>;: J# e) E1 _3 S
when <constant_list> then
; z; I& |1 o3 W p <statement sequence2>;" Y7 E2 c: C; H" t) @4 w, ^( {
...
1 {6 z- c. I# l4 W: R, L* D else1 \+ E0 u+ K8 H+ J
<statement sequence3>;& p" D8 h' Z" k7 z
end; f$ A% x& y# Z1 j( I
: e* n+ j0 r: M! @0 D2循环语句
4 J* I# W, {. Y9 S) e+ r" j" e5 Y (1) from <statement sequence1>2 [- ^! B- B( f: ]! O4 n
until <condition> loop
+ ^# h3 ~0 ]) l" _' t- s <statement sequence2>;
; f9 c2 s' Y: N% H; B" g end;7 ^) O8 w: @5 @$ K1 M1 l* k- o, L
(2) while <condition> loop9 l# n1 W# O8 k
<statement sequence1>;4 F* O& B8 |2 v! K
end;* y! v) N( s( Q e
(3) repeat 7 b7 ^, C+ y9 h5 d3 {) ?
<statement sequence1>;
2 Z7 Y, ]' U: m+ }5 e until <condition>;- l9 Z# u! b* v! R5 J
(4) for <condition> to <condition> loop
4 [& ?3 p. B5 A' @ <statement sequence1>;
5 Y) u) i3 O- F: J) {+ }) j* l next;
# V5 g/ a5 G+ W' ^3中断语句
r1 n+ X- i+ L2 ?' j9 {$ C* m$ ]8 ^. @ waituntil <condition> prio <integer expression>;) M/ _! h* x; ` y$ o
; [( G5 o& |: ]) ? a: n
! h9 y% g6 K4 E) O3 T$ I2 [3 H* M以上为常用的函数！. \4 l; e9 e+ y f
还有很多，如有需要我把资料发到你邮箱里
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