json.dumps和json.load有什么区别? [英] What is the difference between json.dumps and json.load?

问题描述

json.dumps和json.load有什么区别?

根据我的理解，一个将JSON加载到字典中，另一个则将其加载到对象中.

From my understanding, one loads JSON into a dictionary and another loads into objects.

推荐答案

接受一个对象并产生一个字符串:

dumps takes an object and produces a string:

>>> a = {'foo': 3}
>>> json.dumps(a)
'{"foo": 3}'

load 将采用类似文件的对象，请阅读来自该对象的数据，并使用该字符串创建一个对象:

load would take a file-like object, read the data from that object, and use that string to create an object:

with open('file.json') as fh:
    a = json.load(fh)

请注意， dump 和load在文件之间转换和对象，而dumps和 loads 在字符串和对象.您可以将s -less函数视为s函数的包装器:

Note that dump and load convert between files and objects, while dumps and loads convert between strings and objects. You can think of the s-less functions as wrappers around the s functions:

def dump(obj, fh):
    fh.write(dumps(obj))

def load(fh):
    return loads(fh.read())

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