The fmemopen() function gives you a stdio FILE * object that refers to a buffer in memory. Replacing the open of test.jpg with a single call to fmemopen solves half the problem
fmemopen()函数提供了一个stdioFILE *对象，该对象表示内存中的一个缓冲区。
Classes are usually packaged inside a JAR file that represents a coherent function.
类通常包装在一个代表一致功能的JAR文件中。
Listing 3. Generated Code for an inline function in header file.
列表3.在头文件中为一个内联函数所生成的代码。
The root user can control every process, access every file, and perform any function on the system.
root用户可以控制所有的程序，访问所有文件，使用系统上的所有功能。
Go back to the functions.php file and add a function called following , shown in Listing 12.
回到functions . php文件，添加一个名为following的函数，如清单12所示。
For small files this is a perfectly acceptable function, but as the file size increases so do the problems.
对于小文件而言，这是一个很好用的函数，但随着文件大小增大就会出现问题。
The code generated for the virtual function in a header file is shown in Listing 2.
在头文件中为该虚函数所生成的代码如列表2中所示。
In general, it is asserted that a target's function is to create a file from other files.
通常我们可以说，目标的功能是从其他文件中创建一个文件。
The read function is unaware of file system types, such as ext3 or NFS.
read函数不了解文件系统的类型，比如ext3或 NFS。
The first parameter fildes is the open file descriptor returned from the function open , referring to a specific device.
第一个参数fildes是函数open返回的文件描述符，用于指称具体设备。
Take a look at the function onview inside the file FlexWrapper.js to see how the tag is constructed.
可以通过查看Flex Wrapper . js文件中的onview函数，了解这个标记是如何构造的。
For some reason, at the top of this file, I've also included what I've called a function prototype.
因为一些原因，在这个文件顶端，我包含了一个函数原型。
Because your custom function is used to access file information on the local system, you cannot embed it in an XFDL form.
由于定制函数用于访问本地系统上的文件信息，因此不能将其嵌入XFDL表单。
When the page is loaded, the data is displayed through the help of jQuery and a helper function in the netmon.js file.
当页面加载时，数据的显示通过jQuery以及netmon.js文件的一个helper函数实现。
The compiler will also now allow you to define an optimization level at the function level (instead of at the file level, which was the previous default).
编译器现在还允许在函数级(而不是在之前默认的文件级)定义一个优化级别。
The WSDL file associated with a particular channel describes the function that the channel provides and the format of the messages the channel supports.
与特定通道关联的WSDL文件将说明该通道提供的功能以及通道支持的消息格式。
As in the previous example, the print function raises an exception, because the file was not open for writing.
正如之前的例子所示，print函数抛出了一个异常，原因是文件尚未打开以供写入。
When a statement executes (1), the trigger is called (2). The trigger registers a callback function (3) to write the result to a file.
当一个语句执行时(1)，触发器被调用(2)。触发器注册一个回调函数(3)，以便将结果写入一个文件。
You should also remove it from the create function so you don't load the Helper file twice.
此外还应该从create函数删除它以避免两次加载helper文件。
Function: This visual component will save the data from the table to the specified XML file.
功能：这个可视化组件可以将表格中的数据保存到指定的XML文件中。
To see if the string ing is present in the file text, use the index function, which returns the location of the first occurrence of ing so that you can use it for further string processing.
若要查看字符串ing是否出现在文件文本中，请使用index函数，该函数返回ing首次出现的位置，这样您就可以使用它来进行进一步的字符串处理。
The function loads the file data using a single call to fread , copying the data into a separate structure, before using a strcpy to move the data from the loaded string to the global string.
此函数通过调用fread装载文件数据，把数据复制到另一个结构中，然后使用strcpy把数据从装载的字符串转移到全局字符串中。
You define a function in Vim that passes to the Perl code the file sources.
在Vim中编写一个函数，它把文件源代码传递给Perl代码。
The Phar archive can loaded easily from a PHP file using the require or include function, or can be executed directly from the browser or command line by specifying the Phar archive by name.
Phar归档可以通过require或include函数轻松地从PHP文件加载，或者通过使用名称指定Phar归档，直接从浏览器或命令行执行。
The importing function in the relationship manager supports only a full format .csv file, which includes metadata.
关系管理器中的导入功能只支持完全格式化的.csv文件，它包括元数据。
The map class implements the map function, which goes through each line of the log file and gets the application's name.
map类实现映射功能，它搜索日志文件的每一行，寻找应用程序的名称。
The header function calls at the beginning are also interesting because they tell the browser what to do with the file.
开始的头部函数调用也很有趣，因为它们告诉浏览器对文件做些什么。
Unresolved function names, like printf() in this case, are marked out in the object file produced.
在生成的目标文件中标记出了未解析的函数名，如printf() 。
An action performs some function such as starting a batch job, transferring a file, updating a database or calling into a J2EE application.
动作(action)执行一些功能，如开始一批任务、传输一个文件、更新数据库或者调用J2EE应用。
Skipping ahead to the end of Listing 1, fclose serves the opposite function of fopen: it closes the connection to the file or URL.
向前跳至清单1的末尾，fclose将实现与fopen相反的功能：它将关闭指向文件或URL的连接。
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