DAO/DAPP去中心化流動性質押挖礦分紅系統開發（穩定版）丨案例原始碼

　　notice Convert Tokens to ETH.

　　dev User specifies exact input and minimum output.

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

　　param min_eth Minimum ETH purchased.min_eth為要購買的ETH的最小值

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

　　 　return Amount of ETH bought.返回最終購買到的ETH數量

　　#函式功能：指定輸入的代幣數量，根據代幣數量兌換ETH併傳送給訊息呼叫者

　　public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。

　　def tokenToEthSwapInput(tokens_sold:uint256,min_eth:uint256(wei),deadline:timestamp)->uint256(wei):

　　return self.tokenToEthInput(tokens_sold,min_eth,deadline,msg.sender,msg.sender)

　　

　　notice Convert Tokens to ETH and transfers ETH to recipient.

　　dev User specifies exact input and minimum output.

　　param tokens_sold Amount of Tokens sold.

　　param min_eth Minimum ETH purchased.

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

　　param recipient The address that receives output ETH.

　　return Amount of ETH bought.

　　#函式功能：指定輸入的代幣數量，根據代幣數量兌換ETH併傳送給指定接收者

　　比tokenToEthSwapInput函式多了一個接收者，指定用來接收所兌換的ETH的地址

　　public

　　def tokenToEthTransferInput(tokens_sold:uint256,min_eth:uint256(wei),deadline:timestamp,recipient:address)->uint256(wei):

　　assert recipient!=self and recipient!=ZERO_ADDRESS

　　return self.tokenToEthInput(tokens_sold,min_eth,deadline,msg.sender,recipient)

　　

　　notice Convert Tokens to ETH.

　　dev User specifies maximum input and exact output.

　　param eth_bought Amount of ETH purchased.#想要購買的ETH的數量

　　param max_tokens Maximum Tokens sold.#最大能接受的支付的代幣數量

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

　　return Amount of Tokens sold.#最終消耗的代幣數量

　　#函式功能：指定所想要兌換到的ETH數量並將ETH傳送給訊息呼叫者，函式根據要兌換的ETH計算扣除代幣

　　public

　　def tokenToEthSwapOutput(eth_bought:uint256(wei),max_tokens:uint256,deadline:timestamp)->uint256:

　　return self.tokenToEthOutput(eth_bought,max_tokens,deadline,msg.sender,msg.sender)

　　

　　notice Convert Tokens to ETH and transfers ETH to recipient.

　　dev User specifies maximum input and exact output.

　　param eth_bought Amount of ETH purchased.

　　param max_tokens Maximum Tokens sold.

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

　　param recipient The address that receives output ETH.

　　return Amount of Tokens sold.

　　#函式功能：指定所想要兌換到的ETH數量並將ETH傳送給指定接收者，函式根據要兌換的ETH計算扣除代幣

　　public

　　def tokenToEthTransferOutput(eth_bought:uint256(wei),max_tokens:uint256,deadline:timestamp,recipient:address)->uint256:

　　assert recipient!=self and recipient!=ZERO_ADDRESS

　　return self.tokenToEthOutput(eth_bought,max_tokens,deadline,msg.sender,recipient)