题解 | #遍历字典#
遍历字典
http://www.nowcoder.com/practice/0315639767824323a2cdb9ee3f998314
operators_dict = {'<': 'less than','==': 'equal'}
print('Here is the original dict:')
#reverse=False，默认是False升序，true降序
for i in sorted(operators_dict,reverse=False):
print(f"Operator {i} means {operators_dict[i]}.")
#往字典中增加键值对:'>':'greater than'
operators_dict['>'] = 'greater than'
print()
print('The dict was changed to:')
for j in sorted(operators_dict):
print(f"Operator {j} means {operators_dict[j]}.")
print('Here is the original dict:')
#reverse=False，默认是False升序，true降序
for i in sorted(operators_dict,reverse=False):
print(f"Operator {i} means {operators_dict[i]}.")
#往字典中增加键值对:'>':'greater than'
operators_dict['>'] = 'greater than'
print()
print('The dict was changed to:')
for j in sorted(operators_dict):
print(f"Operator {j} means {operators_dict[j]}.")
