吳孟雯Python_HTML_CSS_Javascript

import csv 
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(3): 
    print(i+1,'家公司',rows[i][6])
accountant = set() 
for i in range(n): 
    accountant.add(rows[i][6]) 
print('吳孟雯set統計會計師事務所',len(accountant))