我抓出来也是uUnicode 形式的，我转码是用piplines这个
def __init__(self):
self.file = codecs.open('items.json', 'w', encoding='utf-8')
def process_item(self, item, spider):
line = json.dumps(dict(item)) + "\n"
self.file.write(line.decode('unicode_escape'))
def __init__(self):
self.file = codecs.open('items.json', 'w', encoding='utf-8')
def process_item(self, item, spider):
line = json.dumps(dict(item)) + "\n"
self.file.write(line.decode('unicode_escape'))
return item
