我正在尝试编写一个函数，该函数读取现有.csv文件的工作表，并将每20行复制到一个新创建的csv文件中。因此，需要将其设计为类似于文件计数器“ file_01，file_02，file_04，...”，其中前20行复制到file_01，后20行复制到file_02.csv，依此类推。
目前，我有这段代码到目前为止对我的工作还不起作用。
import csv import os.path from itertools import islice N = 20 new_filename = "" filename = "" with open(filename, "rb") as file: # the a opens it in append mode reader = csv.reader(file) for i in range(N): line = next(file).strip() #print(line) with open(new_filename, 'wb') as outfh: writer = csv.writer(outfh) writer.writerow(line) writer.writerows(islice(reader, 2))我已经附上了一个测试文件。
https://1drv.ms/u/s!AhdJmaLEPcR8htYqFooEoYUwDzdZbg
32.01,18.42,58.98,33.02,55.37,63.25,12.82,-32.42,33.99,179.53,
41.11,33.94,67.85,57.61,59.23,94.69,19.43,-19.15,21.71,-161.13,
49.80,54.12,72.78,100.74,56.97,128.84,26.95,-6.76,10.07,-142.62,
55.49,81.02,68.93,148.17,49.25,157.32,34.94,5.39,0.44,-123.32,
56.01,112.81,59.27,177.87,38.50,179.63,43.43,18.42,-5.81,-102.24,
50.79,142.87,48.06,-162.32,26.60,-161.21,52.38,34.37,-7.42,-79.64,
41.54,167.36,37.12,-145.93,15.01,-142.84,60.90,57.05,-4.47,-56.54,
30.28,-172.09,27.36,-130.24,5.11,-123.66,66.24,91.12,-0.76,-35.44,
18.64,-153.20,19.52,-114.09,-1.54,-102.96,64.77,131.32,5.12,-21.68,
7.92,-134.07,14.24,-96.93,-3.79,-80.91,57.10,162.35,12.51,-9.21,
-0.34,-113.74,11.80,-78.73,-2.49,-58.46,46.75,-175.86,20.81,2.87,
-4.81,-91.85,11.78,-60.28,0.59,-39.26,35.75,-158.12,29.79,15.71,
-4.76,-68.67,13.79,-43.84,6.82,-24.69,25.27,-141.56,39.05,30.71,
-1.33,-46.42,18.44,-30.23,14.53,-11.95,16.21,-124.45,47.91,50.25,
4.14,-29.61,24.89,-18.02,23.01,0.10,9.59,-106.05,54.46,77.07,
11.04,-15.39,32.33,-6.66,31.92,12.48,6.24,-86.34,55.72,110.53,
18.69,-2.32,40.46,4.57,41.11,26.87,6.07,-65.68,50.25,142.78,
26.94,10.56,49.18,16.67,49.92,45.39,8.06,-46.86,40.13,168.29,
35.80,24.58,58.45,31.99,56.83,70.92,12.96,-31.90,28.10,-171.07,
44.90,41.72,67.41,55.89,59.21,103.94,19.63,-18.67,15.97,-152.40,
-5.41,-77.62,11.40,-63.21,4.80,-29.06,31.33,-151.44,43.00,37.25,
-2.88,-54.38,13.08,-46.00,12.16,-15.86,21.21,-134.62,51.25,59.16,
1.69,-35.73,17.44,-32.01,20.37,-3.78,13.06,-117.10,56.18,88.98,
8.15,-20.80,23.70,-19.66,29.11,8.29,7.74,-98.22,54.91,123.30,
15.52,-7.45,31.04,-8.22,38.22,21.78,5.76,-77.99,47.34,153.31,
23.53,5.38,39.07,2.98,47.29,38.71,6.58,-57.45,36.18,176.74,
32.16,18.76,47.71,14.88,55.08,61.71,9.76,-40.52,23.99,-163.75,
41.27,34.36,56.93,29.53,59.23,92.75,15.53,-26.40,12.16,-145.27,
49.92,54.65,66.04,51.59,57.34,126.97,22.59,-13.65,2.14,-126.20,
55.50,81.56,72.21,90.19,49.88,155.84,30.32,-1.48,-4.71,-105.49,
55.92,113.45,70.26,139.40,39.23,178.48,38.55,10.92,-7.09,-83.11,
50.58,143.40,61.40,172.50,27.38,-162.27,47.25,24.86,-4.77,-60.15,
41.30,167.74,50.34,-166.33,15.74,-143.93,56.21,43.14,-0.54,-38.22,
30.03,-171.78,39.24,-149.48,5.71,-124.87,63.77,70.19,4.75,-24.15,
18.40,-152.91,29.17,-133.78,-1.18,-104.31,66.51,108.81,11.86,-11.51,
7.69,-133.71,20.84,-117.74,-3.72,-82.28,61.95,146.15,20.05,0.65,
-0.52,-113.33,14.97,-100.79,-2.58,-59.75,52.78,172.46,28.91,13.29,
-4.91,-91.36,11.92,-82.84,0.34,-40.12,41.93,-167.91,38.21,27.90,
我正在尝试编写一个函数，该函数读取现有.csv文件的工作表，并将每20行复制到一个新创建的csv文件中。因此，需要像文件计数器“ file_01，...
无需使用任何特殊的CSV库（例如csv，尽管可以，只是我不知道如何使用它们，但是认为在这种情况下没有必要），您可以：