语法求助 ( 积分: 100 )

A

andyzhouap98111

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• 2005-08-03

• #1

能解释一下下面的作用吗最好每一句都说下,特别是set of 的意思
type
TMyBoolean = Boolean;
TMyBooleanSet = set of TMyBoolean;
TWeekDay = (Mon, Tue, Wed, Thu, Fri, Sat, Sun);
TOffDays = set of TWeekDay;
TWorkDays = set of TWeekDay


var
BSet: TMyBooleanSet;
ODays: TOffDays;
WDays: TWorkDays;
...

BSet := [True];
ODays := [Sat, Sun];
WDays := [Mon, Tue] + [Wed, Thu, Fri] + ODays - [Sun];

 

A

andyzhouap98111

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GUEST, unregistred user!

• 2005-08-03

• #2

能解释一下下面的作用吗最好每一句都说下,特别是set of 的意思
type
TMyBoolean = Boolean;
TMyBooleanSet = set of TMyBoolean;
TWeekDay = (Mon, Tue, Wed, Thu, Fri, Sat, Sun);
TOffDays = set of TWeekDay;
TWorkDays = set of TWeekDay


var
BSet: TMyBooleanSet;
ODays: TOffDays;
WDays: TWorkDays;
...

BSet := [True];
ODays := [Sat, Sun];
WDays := [Mon, Tue] + [Wed, Thu, Fri] + ODays - [Sun];

 

B

blueyestar

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• 2005-08-03

• #3

set of 好像是定义成枚举类型

 

B

bjaman

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• 2005-08-03

• #4

集合嘛, True和False以及空集[]是它的所有元素

 

V

vvyang

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• 2005-08-03

• #5

1、定义 TMyBoolean 为布尔类型
2、定义 TMyBooleanSet 为集合类型，元素当然是 True 和 False
3、定义 TWeekDay 为枚举类型
4、定义 TOffDays 为集合，元素是 Mon, Tue, Wed, Thu, Fri, Sat, Sun
5、TWorkDays 同上
6、多看看 Pascal 的书

 

A

andyzhouap98111

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• 2005-08-04

• #6

PByte = ^Byte 又是什么意思

 

J

jennykiller

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• 2005-08-04

• #7

PByte = ^Byte 就是定义PByte类型为BYTE类型的指针。

 

K

KTLinJC

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• 2005-08-04

• #8

PByte = ^Byte 又是什么意思
这是定义一个Byte类型的指针

 

J

jlyin

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• 2005-08-04

• #9

^Byte 和PByteArray有什么区别？
都是Byte类型的指针吧

 

R

rocky2003

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• 2005-08-04

• #10

其实delphi的＾和c 中的* 是差不多的

 

A

andyzhouap98111

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• 2005-08-04

• #11

接受答案了.