import sys class RedirectStdoutTo: def __init__(self, out_new): self.out_new = out_new def __enter__(self): self.out_old = sys.stdout sys.stdout = self.out_new def __exit__(self, *args): sys.stdout = self.out_old print('A') with open('out.log', mode='w', encoding='utf-8') as a_file, RedirectStdoutTo(a_file): print('B') print('C') 
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这里只有精品视频