这句的export和exported是什么意思？

这句的export和exported是什么意思?

Until the kernel series 2.4.x, the sys_call_table data structure was an exported kernel symbol. This meant that any LKM could reference this variable from within its code and, during the loading of the module, it would be appropriately linked. Since the kernel series 2.6.x, Linus Torvalds decided to no longer export this symbol.

was an exported kernel symbol 形容词 已经推出的，已出口的。

no longer export this symbol 这里是个动词

问下android:exported="true"有什么用？

在Activity中该属性用来标示：当前Activity是否可以被另一个Application的组件启动：true允许被启动；false不允许被启动。
android:exported 是Android中的四大组件 Activity，Service，Provider，Receiver 四大组件中都会有的一个属性。
总体来说它的主要作用是：是否支持其它应用调用当前组件。

下面分享相关内容的知识扩展：

export有没有被动语态

有啊 输出
可以使货物被输出 如 the goods is exported to China 货物被输往中国
想可以帮助你
谢谢

如何使用XtraReport将报表导出为PDF

首先需要在项目中新建一个报表（命名为XtraReport1）。还请注意,如果您希望用于打开系统中*.pdf文件的默认程序自动打开生成的文件,你可以调用StartProcess *** ,示例中也有展示。
using System.Diagnostics;
using DevExpress.XtraPrinting;
using DevExpress.XtraReports.UI;
// ...

private void button1_Click(object sender, EventArgs e)
{
// A path to export a report.
string reportPath = "c:\\Test.pdf";

// Create a report instance.
XtraReport1 report = new XtraReport1();

// Get its PDF export options.
PdfExportOptions pdfOptions = report.ExportOptions.Pdf;

// Set PDF-specific export options.
pdfOptions.Compressed = true;
pdfOptions.ImageQuality = PdfJpegImageQuality.Low;
pdfOptions.NeverEmbeddedFonts = "Tahoma;Courier New";
pdfOptions.DocumentOptions.Application = "Test Application";
pdfOptions.DocumentOptions.Author = "DX Documentation Team";
pdfOptions.DocumentOptions.Keywords = "XtraReports, XtraPrinting";
pdfOptions.DocumentOptions.Subject = "Test Subject";
pdfOptions.DocumentOptions.Title = "Test Title";

// Set the pages to be exported.
pdfOptions.PageRange = "1, 3-5";

// Export the report to PDF.
report.ExportToPdf(reportPath);

// Show the result.
StartProcess(reportPath);
}

// Use this method if you want to automaically open
// the created PDF file in the default program.
public void StartProcess(string path)
{
Process process = new Process();
try
{
process.StartInfo.FileName = path;
process.Start();
process.WaitForInputIdle();
}
catch { }
}

Imports System.Diagnostics
Imports DevExpress.XtraPrinting
Imports DevExpress.XtraReports.UI
' ...

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click
' A path to export a report.
Dim reportPath As String = "c:\\Test.pdf"

' Create a report instance.
Dim report As New XtraReport1()

' Get its PDF export options.
Dim pdfOptions As PdfExportOptions = report.ExportOptions.Pdf

' Set PDF-specific export options.
pdfOptions.Compressed = True
pdfOptions.ImageQuality = PdfJpegImageQuality.Low
pdfOptions.NeverEmbeddedFonts = "Tahoma;Courier New"
pdfOptions.DocumentOptions.Application = "Test Application"
pdfOptions.DocumentOptions.Author = "DX Documentation Team"
pdfOptions.DocumentOptions.Keywords = "XtraReports, XtraPrinting"
pdfOptions.DocumentOptions.Subject = "Test Subject"
pdfOptions.DocumentOptions.Title = "Test Title"

' Set the pages to be exported.
pdfOptions.PageRange = "1, 3-5"

' Export the report to PDF.
report.ExportToPdf(reportPath)

' Show the result.
StartProcess(reportPath)
End Sub

' Use this method if you want to automaically open
' the created PDF file in the default program.
Public Sub StartProcess(ByVal path As String)
Dim process As New Process()
Try
process.StartInfo.FileName = path
process.Start()
process.WaitForInputIdle()
Catch
End Try
End Sub

how is the computer对吗

how is the computer对的。意思是：电脑怎么样？

computer 读法英 [k?m?pju?t?(r)]? 美 [k?m?pju?t?r]

n. 计算机；电脑；电子计算机

[ 复数 computers ]

短语

personal computer 个人电脑

Computer Virus [计] 计算机病毒