Python实现字典按key或者value进行排序操作示例【sorted】

# -*- coding:utf-8 -*-
#! python2
print '------定义一个字典d1---------------------------------------'
d1 = {'a':14, 'c':12, 'b':11, 'e':13, 'f':16, 'd':15}
print '------打印d1---------------------------------------'
print d1
print '------遍历字典d1---------------------------------------'
for i in d1:
  print i
print '------遍历字典d1---------------------------------------'
for temp in d1.items():
  print temp
print '------遍历字典的key---------------------------------------'
for key,value in d1.items():
  print key
print '------遍历字典的value---------------------------------------'
for key,value in d1.items():
  print value
print '------遍历字典的key和value---------------------------------------'
for key,value in d1.items():
  print key,value
print '---------------------------------------------'
print '---------------------------------------------'
#
print '------d1.items()与其类型展示---------------------------------------'
res = d1.items()
print 'res = ',res, '\nres type is',type(res)
print '------d1.iteritems()与其类型展示---------------------------------------'
res2 = d1.iteritems()
print 'res = ',res2, '\nres2 type is',type(res2)
print '------d1按value排序（正序：从小到大）---------------------------------------'
res3 = sorted(d1.iteritems(), key=lambda d:d[1], reverse=False)
print 'res3 = ',res3
print '------d1按value排序（倒序：从大到小）---------------------------------------'
res4 = sorted(d1.iteritems(), key=lambda d:d[1], reverse=True)
print 'res4 = ',res4
print '------d1按key排序（倒序：从大到小）---------------------------------------'
res5 = sorted(d1.iteritems(), key=lambda d:d[0], reverse=True)
print 'res5 = ',res5
print '------d1按key排序（正序：从小到大）---------------------------------------'
res6 = sorted(d1.iteritems(), key=lambda d:d[0], reverse=False)
print 'res6 = ',res6
print '------d1中取出key排序后生成一个列表---------------------------------------'
res7 = [key for key,value in res6] # 注：res6是d1按key排序（正序：从小到大）的结果
print 'res7 = ',res7
print '------d1中取出value排序后生成一个列表---------------------------------------'
res8= [value for key,value in res3] # 注：res3是d1按value排序（正序：从小到大）的结果
print 'res8 = ',res8