Python defines empty variable

i = None 
i = null
i = 0 (numeric type)
i = '' (two single quotes) or i = "" (this is string type)
i = [] (list type)
i = {} (dictionary type )
i = () (tuple type)

Guess you like

Origin http://43.154.161.224:23101/article/api/json?id=324850508&siteId=291194637