题解 | #遍历字典#

operators_dict={'<':'less than','==':'equal'}
print('Here is the original dict:')
for i in sorted(operators_dict) :
    print(f'Operator {i} means {operators_dict[i]}.')
operators_dict['>']='greater than'
print()
print("The dict was changed to:")
for x in sorted(operators_dict):
    print(f"Operator {x} means {operators_dict[x]}.")