摘要： 仅作为调试用,简单粗暴 ALLOWED_HOSTS=['*'] CORS_ORIGIN_ALLOW_ALL = True 或者: 1. pip install django-cors-headers 2. INSTALLED_APPS = [ ... 'corsheaders', ... ] 3. 阅读全文

摘要： 创建DataFrameF示例 val df = sc.parallelize(Seq( | (0,"cat26","cat26"), | (1,"cat67","cat26"), | (2,"cat56","cat26"), | (3,"cat8","cat26"))).toDF("Hour", " 阅读全文