s1 = 'hello,world'
s2 = 'hello,','\\\'Adam\\\''
s3 = 'hello,','\"bart\"'
s4 = r'''hello,
lisa!'''
print(?)
可以前面加\n
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用户6610765864
s1 = 'hello,world'
s2 = 'hello,','\\\'Adam\\\''
s3 = 'hello,','\"bart\"'
s4 = r'''hello,
lisa!'''
print(?)