如何模仿CTRL-B到条形码的功能

Question

这是我在这个网站上的第一篇文章，似乎无法解决问题。

我如何模拟按键功能按Ctrl +乙为条形码，所以我可以扫描与扫描仪的条形码不按按Ctrl +乙。 我试过阅读ASCII控制代码ASCII control codes 请帮助我。

Answer 1

正如您的一个标签所示，您已经了解了代码128符号体系。您需要在代码128B（66）中使用code128A开始代码（103）和相同的字符作为小写'b'。最后，在添加额外的数据后，正确计算校验和并添加它以及停止代码（106）。以下HTML说明：

<img 
 
alt="103,{Start A}" title="103,{Start A}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/AC9gAMEAkBQ+aMgAAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt=" 66,A:{STX},B:{b}" title=" 66,A:{STX},B:{b}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/AG8gAQEAkGqGy8gAAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt=" 52,A:{T},B:{T}" title=" 52,A:{T},B:{T}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/ACOgAOkAxNCxwt0AAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt=" 37,A:{E},B:{E}" title=" 37,A:{E},B:{E}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/AHLgAccBU7KPeu8AAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt=" 51,A:{S},B:{S}" title=" 51,A:{S},B:{S}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/ACLgAScBA3yI80wAAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt=" 52,A:{T},B:{T}" title=" 52,A:{T},B:{T}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/ACOgAOkAxNCxwt0AAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt=" 24,A:{8},B:{8}" title=" 24,A:{8},B:{8}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/ABZgAI8Ad3Mh6bwAAAAASUVORK5CYII=" width="20" height="40"><img 
 
alt="106,{Stop}"title="106,{Stop}"src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA0AAAABAQMAAAA/57ZEAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/ADigARMA2dpJzT8AAAAASUVORK5CYII=" width="20" height="40">

要进行测试，打开写字板或使用按“Ctrl-B”来切换粗体文本和关闭任何文字处理器。扫描片段中条形码的打印副本。每次扫描时，您应该看到文本“TEST”在粗体和纯文本之间交替。

<img 
 
alt="103,{Start A}" title="103,{Start A}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/AC9gAMEAkBQ+aMgAAAAASUVORK5CYII=" width="12" height="33"><img 
 
alt=" 66,A:{STX},B:{b}" title=" 66,A:{STX},B:{b}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/AG8gAQEAkGqGy8gAAAAASUVORK5CYII=" width="12" height="33"><img 
 
alt=" 66,A:{STX},B:{b}" title=" 66,A:{STX},B:{b}" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAABAQMAAAAy+cYDAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/AG8gAQEAkGqGy8gAAAAASUVORK5CYII=" width="12" height="33"><img 
 
alt="106,{Stop}"title="106,{Stop}"src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA0AAAABAQMAAAA/57ZEAAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAADklEQVQIHQEDAPz/ADigARMA2dpJzT8AAAAASUVORK5CYII=" width="12" height="33">