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posted @ 2016-03-16 18:57
findumars
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下面是一段常见的的Delphi代码,在过程的开头声明本过程所需要的全部局部变量: C++程序员会以为obj这个变量就是TObject对象实例本身,会以为这一句是在栈上声明并构造了TObject类的一个对象实例,他们会与下面的C++代码混淆: 牢记一点,在Delphi里,永远不可能在栈上构造一个对象, Read More
posted @ 2016-03-16 18:31
findumars
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检测用户是否具有administrator权限const SECURITY_NT_AUTHORITY: TSIDIdentifierAuthority = (Value: (0, 0, 0, 0, 0, 5)); SECURITY_BUILTIN_DOMAIN_RID = $00000020; DO Read More
posted @ 2016-03-16 03:07
findumars
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QSqlDatabase::addDatabase第一次运行的时候,生成SQLite文件的同时会产生一个默认连接: QSqlDatabase database = QSqlDatabase::addDatabase("QSQLITE"); QString myconn = m_createname Read More
posted @ 2016-03-16 01:25
findumars
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