问如何使用python将数据附加到文本文件中，并将多个文本文件组合成一个文本文件？

EN

with open('x.data') as fin:
    header = None
    rows = []
    extra = []

    for line in fin:
        if len(line) < 5:
            continue
        if not header:
            header = line.strip().split(',')
        elif 'Summary' in line:
            break
        else:
            rows.append( line.strip().split(',') )
        
    for line in fin:
        line = line.strip()
        if not line:
            continue
        left,_,right = line.partition(' = ')
        header.append( left )
        extra.append( right )

with open('out.data', 'w') as fout:
    print( ','.join(header), file=fout )
    for row in rows:
        print( ','.join(row+extra), file=fout )

A,B,C,D,E,F,G,H,I,J,K
Alpha, Beta, Gama, Face, Human,V8CA02TB,8R1,ENVS2F12SLB2,mkern2,1654774930624, 09 13:42:10 2022
Cat, Dog, Camel, Horse, Lion,V8CA02TB,8R1,ENVS2F12SLB2,mkern2,1654774930624, 09 13:42:10 2022