python import json
时间: 2023-11-01 19:46:08 浏览: 24
This statement imports the built-in Python module "json" which provides methods for encoding and decoding JSON data. JSON, or JavaScript Object Notation, is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. The "json" module allows Python programs to work with JSON data by providing methods for encoding Python objects into JSON strings and decoding JSON strings into Python objects.
相关问题
python转换json
在Python中,可以使用内置的json模块来进行JSON和Python数据类型之间的转换。下面是一个简单的示例:
1. 将Python对象转换为JSON字符串:
```python
import json
data = {
"name": "John",
"age": 30,
"city": "New York"
}
json_str = json.dumps(data)
print(json_str)
```
输出:
```
{"name": "John", "age": 30, "city": "New York"}
```
2. 将JSON字符串转换为Python对象:
```python
import json
json_str = '{"name": "John", "age": 30, "city": "New York"}'
data = json.loads(json_str)
print(data)
```
输出:
```
{'name': 'John', 'age': 30, 'city': 'New York'}
```
这样,你就可以在Python中方便地进行JSON和Python数据类型之间的转换了。
python转存json
在Python中,可以使用内置的json模块来进行JSON数据的转储。JSON(JavaScript Object Notation)是一种轻量级的数据交换格式,常用于将数据从一个程序传输到另一个程序。
要将Python对象转储为JSON格式,可以使用json模块中的dumps()函数。以下是一个简单的示例:
```python
import json
data = {
"name": "John",
"age": 30,
"city": "New York"
}
json_data = json.dumps(data)
print(json_data)
```
输出结果将是一个表示该Python对象的JSON字符串:
```
{"name": "John", "age": 30, "city": "New York"}
```
如果要将JSON字符串转换回Python对象,可以使用json模块中的loads()函数。以下是一个示例:
```python
import json
json_data = '{"name": "John", "age": 30, "city": "New York"}'
data = json.loads(json_data)
print(data)
```
输出结果将是一个Python字典对象:
```
{'name': 'John', 'age': 30, 'city': 'New York'}
```