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
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
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
用这个。
cars = {'A':{'speed':70,
'color':2},
'B':{'speed':60,
'color':3}}
print(str(cars).replace(",", ",\n"))
输出:
{'A': {'speed': 70,
'color': 2},
'B': {'speed': 60,
'color': 3}}
我更喜欢yaml的干净格式:
import yaml
print(yaml.dump(cars))
输出:
A:
color: 2
speed: 70
B:
color: 3
speed: 60
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
for car,info in cars.items():
print(car)
for key,value in info.items():
print(key, ":", value)
