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用Python实现文件乱序

  # cat test.dat 1 --- I 2 --- L 3 --- O 4 --- V 5 --- E 6 --- Y 7 --- O 8 --- U 9 --- ! 10 --- ! # cat r.py import sys,random lines = sys.stdin.readlines() olines=[] while lines: olines.append(lines.pop(random.randrange(len(lines)))) sys.stdout.write( "".join(olines)) # cat test.dat python r.py 6 --- Y 4 --- V 8 --- U 5 --- E 3 --- O 2 --- L 1 --- I 10 --- ! 7 --- O 9 --- !

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