Several methods of Python dictionary traversal

(1) Traversing the key value

>>>a{'a':'1','b':'2','C':'3'}>>> forKeyinchA:Print(key+':'+A[key]) A:1B:2C:3>>> forKeyinchA.keys ():Print(key+':'+A[key]) A:1B:2C:3

On use, for keys in a and for key in A.keys (): fully equivalent.

(2) Traversal value value

 for inch a.values ():        Print (value) 123

(3) Traversing dictionary items

 >>> for  kv in   A.items ():  print   (KV)   (  " a  , "  1   "   " b  , "  2   "   " c  , "  3   ) 

(4) Traversal dictionary health value

 for inch A.items ():        Print (key+':'+value) A:1B:2C: for in A.items ():        Print (key+':'+value) A:1B:2C:3

The use of the For Key,value in A.items () is fully equivalent to the for (Key,value) in A.items ()

Several methods of Python dictionary traversal