PCB design software is used most in the world:
1)Cadence Allegro
2)MentorGraphics PADS
3)MentorGraphics WG,EN
5)Zuken CR
6)EAGLE
Note:
The first and second one——Most people use it
The third one——Less people use it
The fourth one——The easiest to learn by self-study
The fifth and sixth one—— Mainly beused in Japan