不可能。出于安全原因，浏览器不允许这样做

QnA 1 [ ^ ]

QnA 2 [ ^ ]

No it is not possible. For security reasons browsers do no allow this
QnA 1[^]
QnA 2[^]

创建一个OpenFileDialogBox实例，它将提示一个对话框供您选择文件，并且可以在OpenFileDialogBox属性中获取其完整路径。

create an instance of OpenFileDialogBox,it will prompt a dialog box for you to select your files and you can get its full path in OpenFileDialogBox properties.