dreamweaver2019打开文件代码空白

For Windows it is WinFileCache-.dat
For MAC it is MacFileCache-.dat

Deleting of that file clears the cache. After restarting Dreamweaver is creating new one. Location of the cache file differs for each version and operating system. Here is a list of locations depending on DW version and OS:

For Dreamweaver CC:

Vista, 7 & 8: C:\Users\\AppData\Roaming\Adobe\Dreamweaver CC\\Configuration
XP: C:\Documents and Settings\\Application Data\Adobe\Dreamweaver CC\Configuration\