全局变量怎马定义？

[sh_yangxiangming]

unit Unit2;

interface
wlsjk: string ;
bdsjk: string ;
userid:string;

uses
SysUtils, Classes;

type
TDataModule2 = class(TDataModule)
private
{ Private declarations }
public
{ Public declarations }
end;

var
DataModule2: TDataModule2;

implementation

{$R *.dfm}

end.

[阿三]

你的这个贴子中我已经回答了,怎么开了两个贴子呀
http://topic.csdn.net/u/20080118/08/ccaa8307-d374-49d3-92af-c689d894faa7.html

[byteh]

unit Unit2;

interface

uses
SysUtils, Classes;

type
TDataModule2 = class(TDataModule)
private
{ Private declarations }
//写到这里的本Unit以外的不能用
wlsjk: string ;
public
{ Public declarations }
//写到这里都可以用
bdsjk: string ;
userid:string;
end;

var
DataModule2: TDataModule2;

implementation

{$R *.dfm}

end.

[zgchao]

定义在public下面或者var都可以