stockName = {'股票1','股票2','股票3','股票4','股票5','股票6','股票7','股票8','股票9','股票10'};
stockPrice = [1,2,3,4,5,6,7,8,9,10];
stocks = struct('Name', stockName, 'Price', num2cell(stockPrice));
sum(extractfield(stocks , 'Price'))
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