[英]Printing from nested dictionary
How to print either 1 specific value, or a select key2 values for all key1 from a nested dictionary? 如何从嵌套字典中为所有key1打印1个特定值或select key2值? The lines in my code display nothing.
我的代码中的行没有显示任何内容。
Foe example , how to print (a single value): 敌人的例子 ,如何打印(单个值):
Canon-PS-G7-X-Mark-II`
or (select key2 values for all key1): 或(为所有key1选择key2值):
Canon-PS-G7-X-Mark-II
Nikon-D5
Sony-alpha9
The dictionary (part of it) and code 字典(部分)和代码
config = {
'g7': {},
'd5': {},
'a9': {},
}
config['g7']['cam_name'] = ('Canon-PS-G7-X-Mark-II')
config['d5']['cam_name'] = ('Nikon-D5')
config['a9']['cam_name'] = ('Sony-alpha9')
camtype = """
1 camera:
(config['g7']['cam_name'])
all cameras
(config[.]['cam_name'])
"""
print(camtype)
try below code: 尝试以下代码:
config = {
'g7': {},
'd5': {},
'a9': {},
}
config['g7']['cam_name'] = ('Canon-PS-G7-X-Mark-II')
config['d5']['cam_name'] = ('Nikon-D5')
config['a9']['cam_name'] = ('Sony-alpha9')
camtype = """
1 camera:
({0})
all cameras
({1})
"""
single_camera = config['g7']['cam_name']
all_camera = ', '.join([config[k]['cam_name'] for k in config])
print(camtype.format(single_camera, all_camera))
output: 输出:
1 camera:
(Canon-PS-G7-X-Mark-II)
all cameras
(['Canon-PS-G7-X-Mark-II', 'Nikon-D5', 'Sony-alpha9'])
I am sure someone else can do better than I. 我相信别人可以做得比我好。
config = {
'g7': {},
'd5': {},
'a9': {},
}
config['g7']['cam_name'] = ('Canon-PS-G7-X-Mark-II')
config['d5']['cam_name'] = ('Nikon-D5')
config['a9']['cam_name'] = ('Sony-alpha9')
camtype = """1 camera: %s""" %(config['g7']['cam_name']) #search up python print function
allcam = [ value['cam_name'] for key, value in config.items()] #creates list with all cameras
str_allcam = "all cameras " + ', '.join( str(p) for p in allcam) # prints all cameras with a comma seperator
print(camtype +"\n" + str_allcam) # outputs a two lines because of newline seperator
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.