这就是字典
cars = {'A':{'speed':70,
'color':2},
'B':{'speed':60,
'color':3}}
使用这个for循环
for keys,values in cars.items():
print(keys)
print(values)
它打印以下内容:
B
{'color': 3, 'speed': 60}
A
{'color': 2, 'speed': 70}
但是我希望程序像这样打印它:
B
color : 3
speed : 60
A
color : 2
speed : 70
我刚开始学习字典，所以我不知道该怎么做。
当前回答
我认为列表理解是最干净的方法:
mydict = {a:1, b:2, c:3}
[(print("key:", key, end='\t'), print('value:', value)) for key, value in mydict.items()]
其他回答
你有一个嵌套结构，所以你需要格式化嵌套的字典:
for key, car in cars.items():
print(key)
for attribute, value in car.items():
print('{} : {}'.format(attribute, value))
这个打印:
A
color : 2
speed : 70
B
color : 3
speed : 60
for car,info in cars.items():
print(car)
for key,value in info.items():
print(key, ":", value)
# Declare and Initialize Map
map = {}
map ["New"] = 1
map ["to"] = 1
map ["Python"] = 5
map ["or"] = 2
# Print Statement
for i in map:
print ("", i, ":", map[i])
# New : 1
# to : 1
# Python : 5
# or : 2
###newbie exact answer desired (Python v3):
###=================================
"""
cars = {'A':{'speed':70,
'color':2},
'B':{'speed':60,
'color':3}}
"""
for keys, values in reversed(sorted(cars.items())):
print(keys)
for keys,values in sorted(values.items()):
print(keys," : ", values)
"""
Output:
B
color : 3
speed : 60
A
color : 2
speed : 70
##[Finished in 0.073s]
"""
修改MrWonderful代码
import sys
def print_dictionary(obj, ident):
if type(obj) == dict:
for k, v in obj.items():
sys.stdout.write(ident)
if hasattr(v, '__iter__'):
print k
print_dictionary(v, ident + ' ')
else:
print '%s : %s' % (k, v)
elif type(obj) == list:
for v in obj:
sys.stdout.write(ident)
if hasattr(v, '__iter__'):
print_dictionary(v, ident + ' ')
else:
print v
else:
print obj
