# coding=utf-8 //設置文本格式import os,sysimport jsondef get_new_json(filepath,key,value):	key_ = key.split(".")	key_length = len(key_)	with open(filepath, 'rb') as f:		json_data = json.load(f)		i = 0		a = json_data		while i < key_length :			if i+1 == key_length :				a[key_[i]] = value				i = i + 1			else :				a = a[key_[i]]				i = i + 1	f.close()	return json_data	def rewrite_json_file(filepath,json_data):	with open(filepath, 'w') as f:		json.dump(json_data,f)	f.close() if __name__ == '__main__':		key = sys.argv[1]	value = int(sys.argv[2])	json_path = sys.argv[3]			m_json_data = get_new_json(json_path,key,value)		rewrite_json_file(json_path,m_json_data)

python json_value_modify.py a.b.c 999 /home/cabin/example.json