dao代幣質押流動性挖礦開發正式版丨dao代幣質押流動性挖礦系統開發案例詳細及原始碼

　　Uniswap V1中ERC20代幣的相互兌換主要是以ETH為中介進行，也就是說其中一種ERC20代幣兌換成ETH，再由ETH兌換成目標ERC20代幣

　　#notice Convert Tokens(self.token)to Tokens(token_addr).

　　#dev User specifies exact input and minimum output.

#param tokens_sold Amount of Tokens sold.支付的代幣數量

　　#param min_tokens_bought Minimum Tokens(token_addr)purchased.購買的代幣的最小值

　　#param min_eth_bought Minimum ETH purchased as intermediary.作為中介的ETH的最小值

　　#param deadline Time after which this transaction can no longer be executed.

　　#param token_addr The address of the token being purchased.目標代幣的ERC20合約地址

　　#return Amount of Tokens(token_addr)bought.最終購買的代幣數量

　　#根據輸入的代幣數量兌換相應數量的目標代幣

　　關於區塊鏈專案技術開發唯:MrsFu123，代幣發行、dapp智慧合約開發、鏈遊開發、多鏈錢包開發

　　交易所開發、量化合約開發、互助遊戲開發、Nft數字藏品開發、眾籌互助開發、元宇宙開發、swap開發、

　　鏈上合約開發、ido開發、商城開發等，開發過各種各樣的系統模式，更有多種模式、制度、案例、後臺等，成熟技術團隊，歡迎實體參考。

　　public

　　def tokenToTokenSwapInput(tokens_sold:uint256,min_tokens_bought:uint256,min_eth_bought:uint256(wei),deadline:timestamp,token_addr:address)->uint256:

　　#獲得目標代幣的兌換合約地址

　　exchange_addr:address=self.factory.getExchange(token_addr)

　　return self.tokenToTokenInput(tokens_sold,min_tokens_bought,min_eth_bought,deadline,msg.sender,msg.sender,exchange_addr)

　　

　　#notice Convert Tokens(self.token)to Tokens(token_addr)and transfers

　　#Tokens(token_addr)to recipient.

　　#dev User specifies exact input and minimum output.

　　#param tokens_sold Amount of Tokens sold.支付的代幣數量

　　#param min_tokens_bought Minimum Tokens(token_addr)purchased.購買的代幣的最小值

　　#param min_eth_bought Minimum ETH purchased as intermediary.作為中介的ETH的最小值

　　#param deadline Time after which this transaction can no longer be executed.

　　#param recipient The address that receives output ETH.目標代幣的接收者地址

　　#param token_addr The address of the token being purchased.目標代幣的ERC20合約地址

　　#return Amount of Tokens(token_addr)bought.最終購買的代幣數量

　　#根據輸入的代幣數量兌換相應數量的目標代幣，並將目標代幣傳送給指定接收者

　　public

　　def tokenToTokenTransferInput(tokens_sold:uint256,min_tokens_bought:uint256,min_eth_bought:uint256(wei),deadline:timestamp,recipient:address,token_addr:address)->uint256:

　　exchange_addr:address=self.factory.getExchange(token_addr)

　　return self.tokenToTokenInput(tokens_sold,min_tokens_bought,min_eth_bought,deadline,msg.sender,recipient,exchange_addr)

　　

　　#notice Convert Tokens(self.token)to Tokens(token_addr).

　　#dev User specifies maximum input and exact output.

　　#param tokens_bought Amount of Tokens(token_addr)bought.所要購買的代幣數量

　　#param max_tokens_sold Maximum Tokens(self.token)sold.所要支付的代幣的最大值

　　#param max_eth_sold Maximum ETH purchased as intermediary.作為中介的ETH的最大值

　　#param deadline Time after which this transaction can no longer be executed.

　　#param token_addr The address of the token being purchased.目標代幣的ERC20合約地址

　　#return Amount of Tokens(self.token)sold.最終所需要支付的代幣數量

　　#根據所要購買的目標代幣數量支付相應數量的持有代幣

　　public

　　def tokenToTokenSwapOutput(tokens_bought:uint256,max_tokens_sold:uint256,max_eth_sold:uint256(wei),deadline:timestamp,token_addr:address)->uint256:

　　exchange_addr:address=self.factory.getExchange(token_addr)

　　return self.tokenToTokenOutput(tokens_bought,max_tokens_sold,max_eth_sold,deadline,msg.sender,msg.sender,exchange_addr)

　　

　　#notice Convert Tokens(self.token)to Tokens(token_addr)and transfers

　　#Tokens(token_addr)to recipient.

　　#dev User specifies maximum input and exact output.

　　#param tokens_bought Amount of Tokens(token_addr)bought.所要購買的代幣數量

　　#param max_tokens_sold Maximum Tokens(self.token)sold.所要支付的代幣的最大值

　　#param max_eth_sold Maximum ETH purchased as intermediary.作為中介的ETH的最大值

　　#param deadline Time after which this transaction can no longer be executed.

　　#param recipient The address that receives output ETH.目標代幣的接收者地址

　　#param token_addr The address of the token being purchased.目標代幣的ERC20合約地址

　　#return Amount of Tokens(self.token)sold.最終所需要支付的代幣數量

　　#根據所要購買的目標代幣數量支付相應數量的持有代幣，並將所兌換的目標代幣傳送給指定接收者

　　public

　　def tokenToTokenTransferOutput(tokens_bought:uint256,max_tokens_sold:uint256,max_eth_sold:uint256(wei),deadline:timestamp,recipient:address,token_addr:address)->uint256:

　　exchange_addr:address=self.factory.getExchange(token_addr)

　　return self.tokenToTokenOutput(tokens_bought,max_tokens_sold,max_eth_sold,deadline,msg.sender,recipient,exchange_addr)