自復制代碼,也就是說你要編寫生成的輸出和生成它的代碼相同的代碼.非常有意思,也很有挑戰性
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print replace(space(1)+
char(39)+space(1)+char(39)+char(41),space(1),'print replace(space(1)+
char(39)+space(1)+char(39)+char(41),space(1)),')
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declare @sql as nvarchar(max)
set @sql=(select text from fn_get_sql(
(select sql_handle from sys.sysprocesses where spid=@@spid)));
print @sql
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print replace(0x2027202729,0x20,'print replace(0x2027202729,0x20,')
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/7899089/viewspace-611051/ ,如需转载,请注明出处,否则将追究法律责任。