摘要：这是遍历excel表的第3列的所有行 df = pd.DataFrame(pd.read_excel(xls_load)) xls_load 是excel表的地址 如:C:\python\img\2020 for i in range(0,len(df)): 取长度 df1 = df.columns 阅读全文

摘要：str_i = "20081231" list_i = list(i) str转成list list_i.insert(4, '/') 注意不用重新赋值 list_i.insert(7, '/') str_i = ''.join(i) list转成str print(str_i) 阅读全文

摘要：items.py部分 import scrapy class App01Item(scrapy.Item): define the fields for your item here like: name = scrapy.Field() original_url = scrapy.Field() 阅读全文