# Python Dict物件與JSON類型轉換

###### tags: `json` `dict` `python`

[ToC]

## :memo: 語法
### :rocket: 將json string轉成python dict
json.loads():將json轉成python dict

import json
# 由字串變數轉dict
jsonstr = '{"Id": 1, "Name": "John", "Email": "[e-mail]"}'
jsondict1 = json.loads(jsonstr)

#由json檔案轉dict
with open('data.json', "r", encoding = "utf8") as file:
    jsondict2 = json.load(file)

print(jsondict1)
print(type(jsondict1))

print(jsondict1)
print(type(jsondict2))
-------------------------------
{'Id': 1, 'Name': 'John', 'Email': '[e-mail]'}
<class 'dict'>
{'Id': 2, 'Name': 'Mary', 'Email': '[e-mail]'}
<class 'dict'>

### :rocket: 從python dict轉換為json string
json.dumps():從python dict轉換為json

import json
json_dict = {'id': 1, 'Name': 'John', 'Email': '[e-mail]'}
json_str = json.dumps(json_dict) # dict 轉成 string

with open("sample.json", "w", encoding = "utf8") as outfile:
    outfile.write(json_str) # 將 string 存成 json檔

print(json_dict)
print(type(json_dict))

print(json_str)
print(type(json_str))
-------------------------------
{'id': 1, 'Name': 'John', 'Email': '[e-mail]'}
<class 'dict'>
{"id": 1, "Name": "John", "Email": "[e-mail]"}
<class 'str'>

## :memo: Title

### :rocket: Sub-Title

1. list1
2. list2

code area

Author - [name=林奇賢]