Python利用WMI实现ping命令

WMI是Windows系统的一大利器，Python的win32api库提供了对WMI的支持，安装win32api即可使用 WMI。
本例通过WMI的WQL实现ping命令。

import wmic = wmi.WMI()wql = "SELECT StatusCode FROM Win32_PingStatus WHERE Address = '127.0.0.1'"for i in c.query(wql):    if i.StatusCode:        print 'offline'    else:        print 'online'

c.query(wql)的结构如下，其中StatusCode为0表示能够ping通，大于0表示ping不通

instance of Win32_PingStatus{    Address = "127.0.0.1";    BufferSize = 32;    NoFragmentation = FALSE;    RecordRoute = 0;    ResolveAddressNames = FALSE;    SourceRoute = "";    SourceRouteType = 0;    StatusCode = 0;    Timeout = 1000;    TimestampRoute = 0;    TimeToLive = 128;    TypeofService = 128;};