Python：比较CSV文件并保存与第一行的区别（列名）

Question

我有两个CSV文件，如下所示：

文件1 ： June_01_2018.csv

文件2 ： June_02_2018.csv

注意 ：我想找到这两个文件之间的区别，并将其与列标题一起存储到第三个文件中。

我的尝试 ：

with open('June_01_2018.csv', 'r') as f1:
    file1 = f1.readlines()

with open('June_02_2018.csv', 'r') as f2:
    file2 = f2.readlines()

with open('June_Updates.csv', 'w') as outFile:
    for line in file2:
        if line not in file1:
            outFile.write(line)

但是无法将列标题存储到第三个文件中。

Answer 1

尝试这个：

    with open('June_01_2018.csv', 'r') as f1:
        file1 = f1.readlines()

    with open('June_02_2018.csv', 'r') as f2:
        file2 = f2.readlines()

    with open('June_Updates.csv', 'w') as outFile:
        outFile.write(file1[0])
        for line in file2:
            if line not in file1:
                outFile.write(line)