Artificial intelligence(AI)refers to the ability of computer systems to perform tasks similar to human intelligence.It is a complex technology,which constantly adjusts and improves its own algorithm by inputting a large amount of data into the algorithm for learning,so as to continuously optimize its performance.

　　AI can be divided into two categories:weak AI and strong AI.Weak AI(also known as narrow AI)refers to AI systems that can only show human intelligence in specific task areas.For example,voice recognition system,auto drive system,etc.Strong artificial intelligence(also known as generalized artificial intelligence)refers to an artificial intelligence system that can display human-like intelligence in various task fields like humans.

　　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(shù)量

　　param min_eth Minimum ETH purchased.min_eth為要購(gòu)買的ETH的最小值

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

　　詳細(xì)及功能案例I35分析7O98詳細(xì)O7I8

　　return Amount of ETH bought.返回最終購(gòu)買到的ETH數(shù)量

　　#函數(shù)功能：指定輸入的代幣數(shù)量，根據(jù)代幣數(shù)量?jī)稉QETH并發(fā)送給消息調(diào)用者

　　public關(guān)于區(qū)塊鏈項(xiàng)目技術(shù)開發(fā)唯:MrsFu123，代幣發(fā)行、dapp智能合約開發(fā)、鏈游開發(fā)、多鏈錢包開發(fā)

　　交易所開發(fā)、量化合約開發(fā)、互助游戲開發(fā)、Nft數(shù)字藏品開發(fā)、眾籌互助開發(fā)、元宇宙開發(fā)、swap開發(fā)、

　　鏈上合約開發(fā)、ido開發(fā)、商城開發(fā)等，開發(fā)過各種各樣的系統(tǒng)模式，更有多種模式、制度、案例、后臺(tái)等，成熟技術(shù)團(tuán)隊(duì)，歡迎實(shí)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.

　　#函數(shù)功能：指定輸入的代幣數(shù)量，根據(jù)代幣數(shù)量?jī)稉QETH并發(fā)送給指定接收者

　　比tokenToEthSwapInput函數(shù)多了一個(gè)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)