Hello, host. A-share T+0 means that the shares you just bought when selling on the same day must not exceed the number you owned before. You can sell 1,000 at a time, buy another 1,000, and sell again. There is no limit on the amount each time. But the total cannot exceed the part you bought before. A-share T+0 is a securities (or futures) trading system. Any trading system in which securities (or futures) and price clearing and delivery procedures are completed on the day when securities (or futures) are traded is called T+0 trading. In layman's terms, securities (or futures) bought on the same day can be sold on the same day. T+0 trading has been implemented in my country's securities market, because it is too speculative. In order to ensure the stability of the securities market, my country's Shanghai Stock Exchange and Shenzhen Stock Exchange now implement "T+1" for stock and fund transactions. "Trading method. That is, if you buy something on the same day, you cannot sell it until the next trading day. At the same time, "T+0" is still implemented for funds, that is, the funds withdrawn on the same day can be used immediately. The A-share T+0 trading platform I am on now is very good.

Reference: Bell Financial A-Share School