print('n =', n, '\nf =', f,'\ns1 =',s1, '\ns2 = ', s2, '\ns3 =',s3,'\ns4 =',s4) //输出结果如下 n = 123 f = 456.789 s1 = Hello, world s2 = Hello. 'Adam' s3 = Hello, "Bart" s4 = Hello, Lisa!
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