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- The difference between string pointer and character array
- Both character arrays and character pointer variables can be used to store and operate strings. But there is a difference between the two. You should pay attention to the following issues when using it:
- PHP开发 2053 2016-12-12 17:22:23
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- Detailed explanation of the use of character arrays and strings in C language
- Definition and initialization of character array The easiest way to understand the initialization of character array is to assign characters to each element in the array one by one.
- PHP开发 1434 2016-12-12 17:17:35
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- Character arrays and character pointers
- Character arrays and character pointers
- PHP开发 1323 2016-12-12 17:16:11
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- PHP object-oriented journey: in-depth understanding of static variables and methods
- This article mainly introduces static variables and methods. Friends in need can refer to it.
- PHP开发 1392 2016-12-12 17:06:07
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- Detailed explanation of Netstat command in Linux
- Netstat is used to display statistical data related to IP, TCP, UDP and ICMP protocols. It is generally used to check the network connection of each port of the machine. Don't be surprised if your computer sometimes receives datagrams that cause erroneous data or malfunctions. TCP/IP can tolerate these types of errors and automatically resend datagrams. But if the cumulative number of error conditions accounts for a large percentage of received IP datagrams, or if its number is increasing rapidly, then you should use Netstat to find out why these conditions occur.
- PHP开发 1230 2016-12-12 17:02:06
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- Detailed explanation of Netstat command (under windows)
- Netstat is used to display statistical data related to IP, TCP, UDP and ICMP protocols. It is generally used to check the network connection of each port of the machine. Don't be surprised if your computer sometimes receives datagrams that cause erroneous data or malfunctions. TCP/IP can tolerate these types of errors and automatically resend datagrams. But if the cumulative number of error conditions represents a significant percentage of the IP datagrams received, or if the number is increasing rapidly, then you should use Netstat to find out why these conditions are occurring.
- PHP开发 1400 2016-12-12 17:00:20
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- Detailed explanation of Linux netstat command
- The Netstat command is used to display various network-related information, such as network connections, routing tables, interface status (Interface Statistics), masquerade connections, multicast memberships (Multicast Memberships), etc.
- PHP开发 1228 2016-12-12 16:58:50
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- Detailed explanation of linux unzip command parameters and usage--linux unzip file command
- Detailed explanation of linux unzip command parameters and usage--linux unzip file command
- PHP开发 2685 2016-12-12 16:51:57
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- Detailed explanation and examples of compressing zip and decompressing unzip commands under Linux
- Detailed explanation and examples of compressing zip and decompressing unzip commands under Linux
- PHP开发 1322 2016-12-12 16:50:42
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- Detailed explanation of several ways PHP handles passwords
- This article mainly introduces several ways in which PHP handles passwords, and introduces the encryption processing of passwords in detail. You can learn more if you need it.
- PHP开发 1307 2016-12-12 16:49:46
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- The Linux command I have used - unzip - to decompress zip files
- The zip file is a commonly used compressed file format. Compression software such as WinZip and WinRar all support the zip file format. Even the java jar package is in the zip format, and the Firefox plug-in xpi file is also in the zip format. Linux's support for zip files is also very thoughtful. It provides commands such as zip, unzip, and zcat to support it. The topic of this article is to talk about using the unzip command to decompress compressed files in zip format. When we need to upload many files on Windows (such as all files in a directory) to Linux, we can first package these files into a zip file, then upload them, and then use un
- PHP开发 1229 2016-12-12 16:49:02
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- linux zip/unzip command
- Function description: Compress files. Syntax: zip [-AcdDfFghjJKlLmoqrSTuvVwXyz$][-b <working directory>][-ll][-n <suffix string>][-t <date and time>][-<compression efficiency>][compressed file][ File...][-i <template style>][-x <template style>] Additional explanation: zip is a widely used compression program. After files are compressed by it, a compressed file with a ".zip" extension will be generated. .
- PHP开发 1573 2016-12-12 16:45:14
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- Introduce the use of vi command under linux
- One of the most powerful editors - vi vi is a screen editor provided by all UNIX systems. It provides a window device through which files can be edited. Of course, people who know a little bit about UNIX systems will more or less find vi to be super difficult to use, but vi is the most basic editor, so I hope readers can learn it well and they will be able to use it smoothly in the UNIX world in the future. Unhindered and effortless, because several other text processors are not standard equipment in UNIX. Maybe someone else's Linux machine does not have joe or pico installed. If you don't know vi, then you may not be able to do it.
- PHP开发 1177 2016-12-12 16:43:15
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- vi command list
- Vi's three operating modes: normal mode, also known as command mode, insert mode, command line (cmdline) mode. The first thing you enter after entering Vi is the normal mode. Vi waits for the editing command input, which is the letter entered at this time. All will be interpreted as commands. In normal mode, enter the insert command i, append command a, open command o, etc. to enter insert mode. In insert mode, any characters entered by the user are saved by Vi as file content and displayed on the screen. During text entry, press the Esc key to return to normal mode. In normal mode, use: to execute Ex commands, use ? and / to search, and use ! to call Shell commands. After the last line of command is executed, Vi
- PHP开发 1544 2016-12-12 16:41:21
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- jquery+json universal three-level linkage drop-down list
- jquery+json universal three-level linkage drop-down list, there are three versions of implementation in the code
- PHP开发 1185 2016-12-12 16:39:34
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