题解 | #遍历字典#

operators_dict={'<':'less than','==':'equal'}
print('Here is the original dict:')
#print(list(operators_dict.keys()))
dict_key=sorted(operators_dict.items())
for i,j in dict_key:
print('Operator {0} means {1}.'.format(i,j))
operators_dict['>']='greater than'
print()
print('The dict was changed to:')
for i,j in sorted(operators_dict.items()):
print('Operator {0} means {1}.'.format(i,j))