小明今天繼續完成的是用戶檢視賣單交易帳簿的功能：

User 用戶功能

• 檢視賣單交易帳簿

function getSellOrderBook(string symbolName) view public returns (uint[], uint[]) {
    uint8 tokenNameIndex = getSymbolIndexOrThrow(symbolName);
    uint[] memory arrPricesSell = new uint[](tokens[tokenNameIndex].amountSellPrices);
    uint[] memory arrVolumesSell = new uint[](tokens[tokenNameIndex].amountSellPrices);
    uint sellWhilePrice = tokens[tokenNameIndex].curSellPrice;
    uint sellCounter = 0;
    if (tokens[tokenNameIndex].curSellPrice > 0) {
        while (sellWhilePrice <= tokens[tokenNameIndex].highestSellPrice) {
            arrPricesSell[sellCounter] = sellWhilePrice;
            uint sellVolumeAtPrice = 0;
            uint sell_offers_key = 0;

            sell_offers_key = tokens[tokenNameIndex].sellBook[sellWhilePrice].offers_key;
            while (sell_offers_key <= tokens[tokenNameIndex].sellBook[sellWhilePrice].offers_length) {
                sellVolumeAtPrice += tokens[tokenNameIndex].sellBook[sellWhilePrice].offers[sell_offers_key].amount;
                sell_offers_key++;
            }

            arrVolumesSell[sellCounter] = sellVolumeAtPrice;

            if (tokens[tokenNameIndex].sellBook[sellWhilePrice].higherPrice == 0) {
                break;
            }
            else {
                sellWhilePrice = tokens[tokenNameIndex].sellBook[sellWhilePrice].higherPrice;
            }
            sellCounter++;

        }
    }

    return (arrPricesSell, arrVolumesSell);
}

本文同時發佈於作者部落格：https://www.bdetw.com/blog

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