2. Knit two stitches on the right needle. Regardless of the previous sweater style, the needles can be unified when the needles are closed.
3. Use the needle on the left to pick out the first needle from the two needles on the right to the front of the second needle, thus collecting a needle.
4. Continue to close the needle according to this method until the last row completely closes the needle, leave a certain length, then cut off the thread end, and then use the sticking needle to hide the extra lines along the pattern of the sweater.