Python 处理 JSON 格式数据
Author: ACatSmiling
Since: 2024-10-09
需求:将文件中的 JSON 格式数据,指定 Key 的值替换。
对于文件的整个文本为 JSON 格式的数据。示例:
{
'A': {
'a': 23.45,
'b': 56.78,
'c': 89.01
}
}
Python 代码:
import json
# 读取原始 JSON 数据
with open('original_data.json', 'r') as file:
data = json.load(file)
# 处理数据
inner_data = data['A']
inner_data['a'] /= 100
inner_data['b'] /= 100
inner_data['c'] /= 100
# 将处理后的数据重新封装为 JSON 并写入文件
with open('processed_data.json', 'w') as file:
json.dump(data, file)
对于文件的每一行为 JSON 格式的数据。示例:
{'A': {'a': 23.45, 'b': 56.78, 'c': 89.01}}
{'A': {'a': 23.45, 'b': 56.78, 'c': 89.01}}
{'A': {'a': 23.45, 'b': 56.78, 'c': 89.01}}
Python 代码:
import json
with open('original_file.txt', 'r') as infile, open('processed_file.txt', 'w') as outfile:
for line in infile:
data = json.loads(line)
for key, inner_dict in data.items():
if 'a' in inner_dict:
inner_dict['a'] /= 100
if 'b' in inner_dict:
inner_dict['b'] /= 100
if 'c' in inner_dict:
inner_dict['c'] /= 100
outfile.write(json.dumps(data) + '\n')