Python输入与输出(文件读取、json格式转换）

name="小明"
name2="小k"
dic = {"name":"eson","age":90}
print('{1} is {0} ‘s sister'.format(name,name2))
print('my name is {name},i‘m {age} years old'.format(**dic))
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name="ESON"
print(f'my name is {name.lower()}')
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写法一：

file = open('venv/pyvenv.cfg','rt')
#print(file.read())
print(file.readline())
print(file.readable())
file.close()
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写法二：

with open('venv/pyvenv.cfg','rt') as file:
    print(file.readlines())
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# dump
import json

info = [
	{
		"name": "eson",
		"age": 18,
		"gender": "female"
	},
	{
		"name": "john"
		"age": 20,
		"gender": "male"
	}
]
json.dump(info,open('datas/datas.json','w'))
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# loads
import json
info = '''
	[
		{
			"name": "eson",
			"age": "18",
			"gender": "female"
		},
		{
			"name": "john",
			"age": "20",
			"gender": "male"
		}
	]
'''
print(type(info))
datas = json.loads(info)
print(datas)
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import json
jsobj = json.load(open('datas/datas.json','r'))
print(jsobj[0]['name'])
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