python通过json读写序列类型的数据文件

 1 import json
 2 class a:
 3     def writeReadJson(self):
 4         list2 =[‘1‘,5.,7,‘3‘]
 5         with open("test.txt",‘w‘) as f:
 6             json.dump(list2,f)#将列表写入f文件
 7         with open("test.txt", ‘r‘) as f1:
 8             j = json.load(f1)#将f1文件内容加载并赋给j
 9         print(j)  #输出{‘3‘: 6, ‘5‘: 8}
10         print(json.dumps(list2))#输出["1", 5.0, 7, "3"]
11 a().writeReadJson()