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万事开头难

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print('n=123','\nf=456.789',"\ns1='Hello, world'","\ns2 = 'Hello, \'Adam\''","\ns3 = r'Hello, \"Bart\"'","\ns4=r\'\'\'Hello,\nLisa!\'\'\'")

以后会越来越难

n = 123 print('n = ',n) f = 456.789 print('f = ',f) s1 = "'Hello, world'" print('s1 = ',s1) s2 = "'Hello, \'Adam\''" print('s2 = ',s2) s3 = "r""'Hello, \"Bart\"'" print('s3 = ',s3) s4 = "r'''Hello,"+'\n'"Lisa!'''" print('s4 = ',s4)


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