Pull-ups cannot be pulled up.

1. Practice push-ups first, accumulate more than 30, and keep exercising, and you can do standard pull-ups.

2. Make a peak-shrinking hanging rod, that is, put something under your feet, do the pull-ups directly to the top, and then stick to it. If it doesn't hold, put it down and hang it until the curtain doesn't hold, then put it down. Do it five times in a row with an interval of 2-5 minutes each time. I believe it won't be long before I can do the whole pull-up