题解 | #遍历字典#
遍历字典
https://www.nowcoder.com/practice/0315639767824323a2cdb9ee3f998314
import sys a={ '<':'less than', '==':'equal' } print("Here is the original dict:") for keys in a: print('Operator {} means {}.'.format(keys,a.get(keys))) print('\r') print('The dict was changed to:') a.setdefault('>','greater than') for keys in a: print('Operator {} means {}.'.format(keys,a.get(keys)))