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Import datetimeimport osimport timeimport pygamefrom pygame import mixerfrom pygame.locals Import usereventstopevent = use Revent + 1 #音乐停止事件h = 9 # time M = 26 # minutes Play_long = 60 * 10 # Play Long def Play (start): Paths = Os.listdir ('. ')

Linux users are broadly divided into two types: one is: The administrator user, the second is the ordinary user, the ordinary user can also be divided into the system users and users logged in. Because Linux is a multi-user multi-tasking system,

File command and its usageWindows:peLinux:elfFile system:Rootfs: Root file systemFhs:linuxLS/view root directory/boot: System boot related files, such as kernel, INITRD, and Grub (bootloader)/dev: Device files block device: Randomly accessed device

1. User group account configuration file------/etc/groupField 1: User group nameField 2: User group password, General Linux User Group No password, default is null or XField 3:gidField 4: List of member users------/etc/gshadowField 1: User group

Chapter III Asynchronous I/OObjective:1. Fast response time, good user experience sync: getData ( ' from_db '); // consumes time m getData (' from_db2 '); // consumption time n // Total time is M + N async: GetData ( ' from_db ', function (

4. Date Range RestrictionsStatic limitNote: Date formats must be consistent with REALDATEFMT and REALTIMEFMTYou can limit the range of dates by configuring MinDate (minimum date), maxdate (maximum date) to a static date valueExample 4-1-1 the range

The definition of the PHP regular expression: A syntax rule used to describe the character arrangement and matching pattern. It is mainly used for pattern segmentation, matching, lookup and substitution operations of strings. Regular functions in

1.ls [Options] [Directory name | list all directories and files in the relevant directory -a lists all files that contain a hidden file that starts with a. A-a , but does not list "." and ".." -L list File details-c sort by CTime show-t sort by

1.wget Command Network applicationThe wget command is used to download files from the specified URL. Wget is very stable, it in the bandwidth is very narrow and unstable network has a strong adaptability, if it is because of network download failure,

recently, I have been writing PPC simulators and assemblers, also in the design. So the new look at "Bird's Linux private dishes", or a lot of commands are not familiar. I'm going to write a few blog notes down. 1. nl [-BNW] FileName: Add line

You know? Linux has a number of different ways of operation, graphical interface and text interface, using command operation, how to use these commands, can be in the text interface to obtain a large number of command instructions, and do not need

Project Command Command explanation Example description Command Help View Whatis Show Manuals Command format:Whatis [-DLV? V] [-r|-w] [-S list] [-M system[,...]] [-M path] [-LLocale] [-c file] name

Common basic Commands:cd command: Change directoryCD [/path/to/somewhere]CdCD ~: Back to home directoryCD ~username: Switch The home directory for the specified userCD-: Go back to your previous directoryRelated environment variables:Pwd:OLDPWD:PWD

This is the method provided online: . tar.gz Decompression: Tar zxvf FileName.tar.gz Compression: Tar zcvf FileName.tar.gz DirName1 DirName2 Roughly summed up the Linux under the various formats of compression package compression, decompression

4. Date Range RestrictionsStatic limitNote: Date formats must be consistent with REALDATEFMT and REALTIMEFMTYou can limit the range of dates by configuring MinDate (minimum date), maxdate (maximum date) to a static date valueExample 4-1-1 the range

ToString () using Method Rollup (C #)C Currency 2.5.ToString ("C") ￥2.50 D Decimal number 25.ToString ("D5") 00025 E Scientific type 25000.ToString ("E") 2.500000E+005 F Fixed point 25.ToString ("F2") 25.00 G Conventional 2.5.ToString

This article has introduced the jquery Calendar plug-in My97datepicker date limits method, shares for everybody reference, the concrete content is as follows " The following highlights date range limits:1) static limitYou can limit the range of

(Every time I come across an unusual, we have to go to the Internet search, simply find a full set, do not know how many people like me) . tar.gzDecompression: Tar zxvf FileName.tar.gzCompression: Tar zcvf FileName.tar.gz dirname Roughly summed up

tar.gz Decompression: Tar zxvf FileName.tar.gz Compression: Tar zcvf FileName.tar.gz dirname Roughly summed up the Linux under the various formats of compression package compression, decompression methods. But some of the methods I did not use, also

Java EE Development of various types of resources download list, the history of the most complete IT resources, personal collection summary. Linux users often need to back up the computer system data, in order to save storage space, often the