python - 同时读取多个文件的每一行

Question

我的文件夹中有“n”个“.txt”文件，我想同时打开它们并循环读取每个文件的第一行，然后每隔一行......

我的文件是这样写的:

0
1
0
1
1
0
0
0

我用过

file = fileinput.input(files=("text_{}.txt".format(i)))
for line in file:
    for ch in line:
        print file.readline()

谢谢

Answer 1

如果你不想读取内存中每个文件的内容，

FILES = ['1.txt', '2.txt', '3.txt']

if __name__ == '__main__':
    file_handles = {filename: open(filename, 'r') for filename in FILES}
    while 1:
        for filename, file in file_handles.items():
            line = next(file, None)
            if line is not None:
                line = line.rstrip('\n')
                print(line)
            else:
                file.close()
                # file_handles.pop(filename)
        if line is None:
            break