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微软有实例。。。 http://msdn.microsoft.com/en-us/library/system.management.managementscope%28zh-cn,VS.85%29.aspx 看下下面那个C# Example 对比下就明白了。 ManagementScope scope = new ManagementScope( "\\\\FullComputerName\\root\\...

if(document.querySelectorAll){ // 支持} else { // 不支持}

先添加对System.Management的引用 using System.Management; ... SelectQuery selectQuery = new SelectQuery("select * from win32_logicaldisk"); ...

public ArrayList getLogicalDisks(){ArrayList DiskList=new ArrayList();//逻辑驱动器对象集合SelectQuery selectQuery = new SelectQuery("select * from...

对于取id,用getElementById更方便,兼容性也更好 querySelector取id没有getElementById方便,但取其他的要方便一些,例如取class等 主要看个人习惯,兼容性问题可以不用考虑了,除了老不死的IE都支持,IE11以下微软都放弃了,我们更应该放弃

1. Oracle数据库 SELECT * FROM TABLENAME WHERE ROWNUM

SELECT USID, "PASSWORD" FROM USERINFO WHERE (USID = @Name)"> 错了吧 SelectCommand="SELECT USID, [PASSWORD] FROM USERINFO WHERE (USID = @Name)"> 试试

String hql = "select count(*) from User u"; session.createQuery(hql).uniqueResult(); 这里返回Object,你想转int 或 long 随你。

ManagementScope scope = new ManagementScope(@"\\本机IP地址\root\cimv2"); scope.Connect(); SelectQuery query = new SelectQuery("SELECT * FROM Win32...

ResultSet rset = stmt.executeQuery("select * from yourTableName"); int rowCount = 0; while(rset.next()) { rowCount++; }rowCount就是ResultSet的...

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