1.We take the 12491024 block of the Ethereum mainnet as the initial lottery block number; 2.Sort all the remaining addresses in the lottery in ascending lexicographical order, starting with 0; 3.The number of the winners this time is the block hash value corresponding to the current lottery block number and the remainder after taking the modulo of the total number of participants in the lottery; 4.Remove this winning address; 5.The lottery block number plus one; 6.Repeat steps 2-5 for a total of 10 times.