FundMe.sol recorde sender's fund.

[RowUltra]

In FundMe.sol contract, here is a function named fund() , in this function we need to record the sender'address and the amount of Ethereum that was sent， but in this function he worte "addressToAmountFunded[msg.sender] += msg.value;", this demo means calculated the funded usd sum. Did i misunderstand?

[HKABIG]

Yes, the statement addressToAmountFunded[msg.sender] += msg.value; does not directly calculate the funded USD sum. Instead, it updates the addressToAmountFunded mapping, which stores the amount of Ether sent by each address. This mapping is later used to calculate the funded USD sum by converting the Ether amounts to USD using the current exchange rate.

[HKABIG]

If it helps Please mark it as answered.