Novel hill-shaped plate device of computerized flat knitting machine, knitting needle assembly and knitting method

The invention discloses a novel hill-shaped plate device of a computerized flat knitting machine, a knitting needle assembly and a knitting method, the novel hill-shaped plate device comprises a triangular bottom plate, a knitting unit, a sheet pressing unit and a needle selecting unit, the knitting unit is arranged at the upper part of the triangular bottom plate, the sheet pressing unit is arranged at the middle part of the triangular bottom plate, and the needle selecting unit is arranged at the lower part of the triangular bottom plate; the knitting unit comprises a disc hill and a needle turning triangle, the disc hill is fixedly arranged on the triangle bottom plate, the needle turning triangle is telescopically arranged above the disc hill, the surface of the disc hill is provided with a needle receiving channel, the two sides of the surface of the disc hill are provided with receding grooves, and guide rails are arranged on the upper edges between the receding grooves and the needle receiving channel.