How can I transfer files from windows to Linux on a virtual machine without connecting to the Internet?

How can I transfer files from windows to Linux on a virtual machine without connecting to the Internet? -- Linux general technology-Linux technology and application information. For details, refer to the following section. Due to learning needs, you need to write a program in the windows environment and upload it to Linux in the Virtual Machine. Now, when you can connect to the Internet, you can use SecureCRT to log on to linux, use CuteFTP to transfer files from window to Linux, but once the Internet is disconnected, it will not work. During the winter vacation, you cannot connect to the Internet. Please help.
Let's talk about my environment: laptops, wireless networks, and virtual machines using NAT.