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问题：directory1='/user/hou/Package'directory2='python'directory3=os.path.join(directory1,directory2)print('directory3 : %s' %directory3)结果：directory3 : /user/hou/Package\python没有拼接成功…解决：directory1='/user/hou/Package/'directory2='python'directory

flask sqlalchemy：关于数据库的网站：http://www.pythondoc.com/flask-sqlalchemy/quickstart.htmljQuery ajax 文档：https://www.w3school.com.cn/jquery/jquery_ref_ajax.aspJquery文档：https://www.w3school.com.cn/jquery/jquery_ref_manipulation.aspBootstrap文档（html css）ht

1、路由@app.route(’/’)def test():pass变量规则：str int float path uuiduid = uuid.uuid4()格式2、视图函数：返回值：类型： 字符串，dict,tuple,response,WSGI response对象 响应对象 response('字符串',headers={key:value}) response = make_response('.....') response.headers['