(Been looking for a long time. Finally showed up. . . Release it. . . . Use the operation to see the following:
1. Find the Chinese.ptl file in the decompressed folder, and copy the Chinese.ptl to the languages ??folder of the PacketTracer5.0 installation directory.
2. Start PacketTracer5.0, select Options in the top menu, and then select Preferences.
3. The Options interface will pop up at this time, and you will see the SelectLanguage text box at the bottom of the interface, select chinese.ptl and click changelanguage. At this time, you will be notified that it will take effect the next time you start PacketTracer 5.0.)