dscp: a dumb extension bypasses csdn sites copy restriction, you probably will find a better one in chrome store whatever.
- How to use:
- download it;
- add it to chrome extension;
- on csdn site, press "Ctrl + M" to enter "copy mode"
- select the text you want to copy, and press "Ctrl + C"
- if you want to return to "read mode", press "Ctrl + M" again.