What does the swap() method do in AEX-9?

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About aex-9 deployment, document description and consensus

Deploy a contract in aex-9, init it with 4 parameters. init( name: string, decimals : int, symbol : string, initial_owner_balance : option(int) ) eg: 'WeTrue Token', '18', 'WTT', '1000000000000000000000000000' There is no objection to the two parameters name and symbol. decimals has no specific description, I should fill in 18 , or 100000000000000000 initial_owner_balance should be the initial amount, so I want to mint 100 WTT should fill in 100 ? or 100000000000000000000 …