我们都听说过“ JavaScript ” 这个术语,但我们中只有少数人知道它的用法和应用。这里的“我们中的少数”是指技术青年、网络程序员和IT专业人员。但是,对于外行来说,“JavaScript”只不过是一个与计算机编程相关的复杂术语。
那么,什么是JavaScript?如果你希望在计算机领域工作,那么你不能错过JavaScript。它是最着名的网页脚本语言。它也广泛用于游戏开发以及桌面和移动应用程序的创建。此外,网站上很多基本功能如下拉菜单、视觉效果、验证数据等都是使用JavaScript创建的。当然,这只是一个概述。
学习JavaScript最好的方法之一是通过视频教程进行在线学习。这里列出十个免费在线学习JavaScript的地址,让你的学习更方便、更有效。


.NET,C,C ++和C#OCR
将PDF文件转换成PDF/A文件1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | <title data-filtered="filtered">Hello World</title><script type="text/javascript" src="Resources/dynamsoft.webtwain.initiate.js" data-filtered="filtered"> </script><script type="text/javascript" src="Resources/dynamsoft.webtwain.config.js" data-filtered="filtered"> </script><input type="button" value="Scan" onclick="AcquireImage();"><div id="dwtcontrolContainer"> </div><script type="text/javascript" data-filtered="filtered"> var DWObject; function Dynamsoft_OnReady(){ DWObject = Dynamsoft.WebTwainEnv.GetWebTwain('dwtcontrolContainer'); } function AcquireImage(){ if(DWObject) { DWObject.IfDisableSourceAfterAcquire = true; DWObject.SelectSource(); DWObject.OpenSource(); DWObject.AcquireImage(); } } </script> |
1 | Dynamsoft.WebTwainEnv.Containers = [{ContainerId:'dwtcontrolContainer',Width:270,Height:350}]; |
1 | Dynamsoft.WebTwainEnv.Containers = [{ContainerId:'dwtcontrolContainer',Width: '50%',Height:350}]; |

1 2 3 4 5 6 | .DYNLogo { background:url(logo.gif) left top no-repeat; width:159px; height:39px; } |

1 2 3 4 5 6 7 8 9 10 11 12 | function OnWebTwainNotFoundOnWindowsCallback(ProductName, InstallerUrl, bHTML5, bIE, bSafari, bSSL,strIEVersion) { } /* This callback is triggered when Dynamic Web TWAIN is not installed on a PC running Windows */ function OnWebTwainNotFoundOnMacCallback(ProductName, InstallerUrl, bHTML5, bIE, bSafari, bSSL,strIEVersion) { } /* This callback is triggered when Dynamic Web TWAIN is not installed on a MAC */ function OnWebTwainOldPluginNotAllowedCallback(ProductName) { } /* This callback is triggered when Dynamic Web TWAIN is disabled by a non-IE browser */ function OnWebTwainNeedUpgradeCallback(ProductName, InstallerUrl, bHTML5, bMac, bIE, bSafari, bSSL,strIEVersion) { } /* This callback is triggered when Dynamic Web TWAIN installed on the machine is older than the //one onthe server and upgrade is needed */ |
本次教程到此结束,希望能对Dynamic Web TWAIN的用户带来帮助,接下来还会有更多的相关教程,敬请期待!
试用、下载、了解更多产品信息请点击"咨询在线客服"











| Public Class Form1 Private Sub btnNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNew.Click If Dialog1.ShowDialog() Then If Dialog1.GetChooseType() = 1 Then AxEDOffice1.CreateNew("Word.Application") ElseIf Dialog1.GetChooseType() = 2 Then AxEDOffice1.CreateNew("Excel.Application") ElseIf Dialog1.GetChooseType() = 3 Then AxEDOffice1.CreateNew("PowerPoint.Application") ElseIf Dialog1.GetChooseType() = 4 Then AxEDOffice1.CreateNew("Visio.Application") ElseIf Dialog1.GetChooseType() = 5 Then AxEDOffice1.CreateNew("MSProject.Application") End If End If End Sub Private Sub btnOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOpen.Click AxEDOffice1.OpenFileDialog() End Sub Private Sub btnSaveAs_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSaveAs.Click AxEDOffice1.SaveFileDialog() End Sub Private Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClose.Click AxEDOffice1.CloseDoc() End Sub Private Sub btnPrint_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrint.Click AxEDOffice1.PrintDialog() End Sub Private Sub btnPreview_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPreview.Click AxEDOffice1.PrintPreview() End Sub Private Sub btnToolbars_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnToolbars.Click If AxEDOffice1.Toolbars = True Then AxEDOffice1.Toolbars = False Else AxEDOffice1.Toolbars = True End If End Sub Private Sub btnAbout_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAbout.Click AxEDOffice1.AboutBox() End Sub End Class |


| public void Open() { axEDOffice1.Open(sPath,“Excel.Application”); axEDOffice1.Open(sPath,“PowerPoint.Application”); axEDOffice1.Open(sPath,“Visio.Application”); axEDOffice1.Open(sPath,“MSProject.Application”); } |
Imports Microsoft.Office.Interop.Word Private Sub Automating_Click(ByVal sender As System.Object,ByVal e As System.EventArgs)Handle Automating.Click Dim word = AxEDOffice1.GetApplication() word.Visible = True Dim doc As Document = AxEDOffice1.ActiveDocument() Dim range As Range = doc.Range range.InsertAfter(“Range1”+ vbCrLf) range.Collapse(WdCollapseDirection.wdCollapseEnd) doc.Bookmarks.Add(“MijnBookmark”,range) range.InsertAfter(“Range2”+ vbCrLf) Dim bookmark As Bookmark = doc。书签(1) range = bookmark.Range range.Text =“Bookmark”+ vbCrLf range.Font.Color = WdColor.wdColorBlue End Sub |
| C#: MailBee.SmtpMail.Smtp.QuickSend("jdoe@domain.com", "bill@domain.com", "Subject", "Message Body"); |
| VB.NET: MailBee.SmtpMail.Smtp.QuickSend("jdoe@domain.com", "bill@domain.com", "Subject", "Message Body") |
| C#: mailer.DnsServers.Add("127.0.0.1"); |
VB.NET: mailer.DnsServers.Add("127.0.0.1") |
| C#: mailer.DnsServers.Autodetect(); |
VB.NET: mailer.DnsServers.Autodetect() |
