python读取json文件中的categories数据

读入json文件

import json

def read_json_file(file_path):
with open(file_path, 'r') as f:
return json.load(f)

if name == 'main':
file_path = 'panoptic_train2017.json'
# 从json文件中读取数据
data = read_json_file(file_path)
# print(data)
#从data中读取categories
categories = data['categories']
print(categories)
# 从categories中读取所有的类别名称
category_names = [category['name'] for category in categories]
print(category_names)