Question

我有一个包含2行数据的csv文件，如下所示：

a1, b1, c1, d1
a2, b2, c2, d2

我想将第1行添加到数组中，然后将第2行添加到单独的数组中，如下所示：

row1 = ["a1", "b1", "c1", "d1"]
row2 = ["a2", "b2", "c2", "d2"]

我将数据写入csv文件的代码是这样的：

import csv
with open("file.csv", "w") as csvFile:
            csvFileReader = csv.writer(csvFile, delimiter=";")
            csvFileReader.writerows([[", ".join(arrValues1)],
                                     [", ".join(arrValues2)]])
csvFile.close()

我该怎么做？

Answer 1

要读取数据，请在next对象上使用两次csv.reader。 next手动遍历编写器，除非读者精疲力尽，否则每次都会发布一行。

import csv
with open("file.csv", "r", newline="") as csvFile:
      reader = csv.reader(csvFile, delimiter=",")
      arrValues1 = next(reader)
      arrValues2 = next(reader)

顺便说一句，首先要写入数组，您应该正确使用csv.writer，而无需str.join：

import csv
with open("file.csv", "w", newline="") as csvFile:
      writer = csv.writer(csvFile, delimiter=",")
      writer.writerows([arrValues1,arrValues2])

将csv行读入多个数组

1 个答案: