字典

 1 b ='upop.flt.cc'
 2 d ='ccb.cc'
 3 a = {'upop.flt.cc':('select upop',{'ccb.cc':'select ccb','icbc':'select icbc'})}
 4 
 5 if d<>'':
 6     if a.get(b):
 7         ff = a.get(b)[1]
 8         print ff.get(d)
 9 else:
10     ww = a.get(b)[0]
11     print ww
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原文地址：https://www.cnblogs.com/yspass/p/8197720.html