The inability to use a printer is nothing more than a few situations: a printer failure, a device connection problem, and a driver error. However, from the above listed failures, the basic can be ruled out printer failures and device connectivity issues, so generally can be identified as a driver support issues. The basic idea of the solution is also simple, that is, you can update the driver to solve the solution. However, drive acquisition, update a
;> Db.my_collection.find_one () {u ' x ': Ten, U ' _id ': ObjectId (' 530034752052D502C4A250AA ')}
Queries all documents/objects in the My_collection collection and iterates through the output
Indentationerror:expected an indented block>>> for item in Db.my_collection.find (): ... print item["x"] ... 10811
Create an index for the My_collection collection>>> Db.my_collection.create_index ("x") u ' x_1 '
Queries all documents/objects in the My_collection collection and traverses the output
1, press "Windows+r" key to enter "Msconfig".
2, select the "Boot" tab, and then click the one that you want to set as the default startup item, and then click "Set as Default" below to determine the reboot of the host.
Windows 8 is the latest Windows series system launched by Microsoft in Beijing time
Now Windows 8 RP has been released for a month, and ie10 has undergone major updates and changes. As a developer, especially a website-related developer. What you must know is that a web page can have some extraordinary experience in Windows 8. My personal summary should include the following.
Multi-touch
1. The maximum image resolution supported in Windows Phone is 2000*2000.
2. webbrowser in Windows Phone does not support opening a new window(Tips can be used to enable it to open a new window)
3. In Windows Phone, the application bar is neither a Silverlight control nor a uielement object.
4. In
Develop Metro applications on Windows 8. I believe many technical enthusiasts will try it out. Many devices may not be replaced with touch screens or have a high resolution.
Why? Because some special effects will certainly be used for the development of Metro applications on Windows 8. For example, semanticzoom requi
sessions and display protocols play an important role. Many virtualization vendors have developed their own display protocols to deliver high-definition experiences, such as Citrix HDX.
RemoteFX in Windows Server 8
In Windows Server 8, Remote Desktop Session host (RDSH) supports RemoteFX. It is a combination of RDSH a
website to view details. Then the above ssh key is generated through gitbash, as follows:shell ssh-keygen -t rsa -C "your@email.com"The site needs to add the following configuration in the windows C: \ Windows \ System32 \ drivers \ etc \ hosts file:shell 192.168.10.10 homestead.app
Start a VMshell homestead upAfter executing the code for a while, you can see that the virtual machine is started and t
Before, when Windows wasn't that complicated, we needed to manually disable the network connection to get a longer battery time. Today, PCS support a growing number of wireless networks, with the exception of Wi-Fi and Bluetooth connectivity and mobile broadband connections. The function of flight mode is more prominent.
Flight mode in Windows
With the full listing of the new Windows 8 system, innovative and versatile features and support for notebook screen touch, become the focus of the user, how to set the window 8 system wireless network connection, the following is described in mouse mode and touch mode set wireless method.
First, the use of
, extend the battery's endurance time.
Note : When some of the features do not support will be automatically hidden, if not supported by the intelligent power to save the entire module will be hidden.
Power management mode with Windows 8 system:
As with Windows 7 and
. requires the computer's CPU to support hardware-level virtual mode and is turned on. To know if your hardware configuration meets your requirements, you can download the following tool, which will automatically test whether the CPU can support hardware-level virtual mode.
The Hardware virtualization option in the screenshot. (show no: unsupported; show yes:
Windows Phone 8 apps can be opened in other ways, in addition to being opened directly from the Start menu and the app list. The photo center, Music + video Center provides an extended support app to start from. In addition, we can launch the app through file associations, URI associations, and so on.Quick navigation:First, expand the music + video CenterSecond,
As we all know, Windows Phone 8 SDK simulators do not support NFC testing. If you have developed an NFC-based application, it means that you need two Windows Phone devices that support NFC during the test. Such configuration may discourage many independent developers.
The
In the Windows 8 operating system, click the right mouse button in the desktop space, where the menu pops up on the left side of the mouse and some on the right side of the mouse. As shown in figure:
This is because Windows 8, when designed, takes into account the touch screen
Developers who have developed WindowsPhone applications or used WindowsPhone phones know that we will receive some application prompts that appear at the top of the phone and will automatically disappear after a few seconds, of course, if we click on the pop-up message will automatically run the appropriate application, this hint information we call the notification.
In fact, the Windows 8 Store app also d
. During installation, you will receive a prompt saying that the XenServer tool does not support the operating system.To successfully install XenServer, first mount a xs-tools.iso image on the VM's virtual drive, open Windows resource manager on the VM, open my computer, open the CD icon (right click-open ), right click the xensetup.exe file and select Properties.Select the Compatibility tab and click t
. virtualbox + Windows 8 = Good job
> Postscript
VMware was so brave that after all the tutorials on Windows 8 installation in VB, VMWare 8 was released to support Windows
Adhoc is the older wireless connection technology, with limited distances, and sometimes a failure to connect, and many new Android systems (MX2 Systems) have started to cut off the old technical support, while at Windows 8 The GUI interface is no longer available to provide adhoc creation.
But fortunately, Windows
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