import csv #輸入csv套件comma separated value file = open('TWSE.CSV','r',encoding='utf-8') #打開下載的檔案TWSE.CSV,模式是r讀取, csvreader = csv.reader(file) #將檔案逐列讀入串列變數csvreader header, rows = [], [] #宣告空白串列(陣列,清單) header = next(csvreader) #串列header存放第一列標題 for row in csvreader: #逐列讀檔案、附加append於rows串列 rows.append(row) file.close() #關閉檔案 print(header) n = len(rows) print('上市公司數目', n) for i in range(n): print(i+1,'家公司',rows[i][6]) accountant = set() for i in range(n): accountant.add(rows[i][6]) print('方廷睿使用集合set統計會計師',len(accountant))

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