Python提取某些行

Question

我有一个名为test.csv的csv文件。 它包含某些带有字符串的行，例如“ Blue”。 如何创建不包含字符串“ Blue”的行的新csv文件。
NB之所以这样，是因为查找和替换方法无法解决这种情况。

Answer 1

您可以not in

with open(file) as f, open(outfile, 'w') as w:
    for line in f:
        if 'Blue' not in line:
            w.write(line)

要么

with open('infile') as f, open('outfile') as w:
    for line in f:
        for i in line.split(','):
            if 'Blue' in i:
                break
        else:
            w.write(line)