题解 | #遍历字典#

print("Here is the original dict:")
operators_dict={'<':'less than','==':'equal'}
#operators_dict=sorted(operators_dict.items(),key=lambda x:x[1])
for k,v in operators_dict.items():
    print(f"Operator {k} means {v}.")
new_dict={">":"greater than"}
operators_dict.update(new_dict)
#operators_dict=sorted(operators_dict.items(),key=lambda x:x[1])
print()
print("The dict was changed to:")
for k,v in operators_dict.items():
    print(f"Operator {k} means {v}.")

这题有问题呀，排序的话返回列表，不排序能通过