Chuanzhi podcast -- WPF basic video learning -- sender explanation, -- wpf -- sender
Sender is the object that fires the event. If it is used in the double-click event of the Button, it is only the currently clicked object.
For example, there are two Button controls: 1 and 2, respectively, and a Button_Click event is bound.
Private void Button_Click (object sender, RoutedEventArgs e) {Button btn = (Button)
IO stream 05 -- video Study Notes for bixiangdong JAVA basic tutorial, 05 -- bixiangdong
Day20
10 create a java file list11 Properties12 Properties access13 Properties14 Properties exercises15 PrintWriter16 merge streams17. Cut files
10 create a java file list
Exercise:Store the absolute path of a java file under a specified directory to a text file,Create a java file list file.
Ideas:1. recursion of the s
development, has begun to self-study embedded development technology, but because the embedded development is different from the ordinary software development, it is a comprehensive computer software and hardware, a comprehensive subject, involving analog circuits, digital circuits, C language, computer composition principle, microcomputer control technology , network technology, data structure and other c
Key concepts:Software section:Software: Software is another part of a computer system that is interdependent with hardware and is a complete collection of programs , data , and related documents .Program: is performed according to the functional and performance requirements of the implementation designinstruction Sequence。Data: A process that enables a program to manipulate information normallyData Structure。Documentation: is a graphic material relate
fast. If you enable this function without setting the maximum transmission speed, all the bandwidth of the individual FTP server will be occupied by this connection, we recommend that you disable this function by selecting block "ftp_bounce" attacks and fxp. 4. Set the FTP server prompt information The user connects to the FTP server through the FTP client software, and the FTP server returns some information through the client
, black Box test summary and common face questions
http://blog.csdn.net/xc5683/article/details/8146494
http://blog.csdn.net/xc5683/article/details/8150256
11, video
http://blog.csdn.net/xc5683/article/details/42421645
Ii. Knowledge of the database
http://blog.csdn.net/xc5683/article/details/8150333
1. Database base
http://blog.csdn.net/xc5683/article/details/8154700
2, SQL Server 2005 (emphasis)
Operations on a database
Operations on a table 01
Opera
georeferenced topographic map, save the document as Ex3.mxd(2) Open the Editor toolbar, execute start editing command from the Editor drop-down menu, and select the Contour feature class you created earlier. Confirm Editor: Task is-new feature, target-contour, set layer-contour the display symbol is red and set to the appropriate width.(1) Enlarge the map to a suitable scale, trace a contour from it and interpret its elevation according to the elevat
, enter the following command:D:\>MD MyFileD:\>MD MypicD:\>MD BackupD:\>Because the current directory is the D packing directory, the command "MD myFile" means to create a folder under the D-Packing directory, and the folder name is "MyFile".4. EditSet up the directory, you can create the A.txt file below. Use the edit command to complete this function. The edit command opens a simple editing software that
Original GIS basic software and operation (11)Practice Xi. 3D Visual analysis1, the geographical data for perspective observation, three-dimensional browsing;2. Make flying animationGIS data three-dimensional display(1) Run the program: [Start menu]>>[All Programs]>>[arcgis]>>[arcscene], open ArcScene(2) Execute the command in Arcscene: [Custom]>>[Extension Module], select the [3D Analyst] Extension module,
private blog, which can be well protected for some private notes.
So I think this idea is still feasible.
Because the focus is on the notes, this topic will certainly ignore the news, consultations, and moves on some oschina in the early stage. In the later stage, we should take a look at the specific situation and add it slowly.
The basic functions of the target are as follows:
Cross-platform
Has a blog (public), a diary (private
Several Basic commands in SSH Software
Directory:1. BasicInstructions/basic2. wget/download Tool3. Crontab/scheduled task4. tar/tar.gz/compressed file5. vi/Editor
Cd [directory name] conversion pathCd .. back to the parent directoryLs displays all files in the current directoryRm [-r]-f [] [file name] delete a file, and add [-r] to delete all the sub-files in the file, for example, rm-rf [abc] deletes the a
lower right section, followed by a text box, enter the letter ABCD in the following text box, then click Applay-->ok Save to exit, select Export file-- General--export Select Preferences and then select the Export all check box (not required below) and specify the name and path of the exported file (note that you can only export. epf format files). Then, under the path you specify, locate the file EPF file that you just exported, (you can use Notepad) to open it, find the ABCD (or ABC) you just
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