qq_41814556的博客

统计重复项出现次数： 方法一： List = [1,2,3,4,5,3,2,1,4,5,6,4,2,3,4,6,2,2]  List_set = set(List) #List_set是另外一个列表，里面的内容是List里面的无重复 项  for item in List_set:  print("the %d has found %d" %(item,List.count(item)...

方式一：生成字典形式使用DictReader逐行读取csv文件 返回的每一个单元格都放在一个字典的值内，而这个字典的键则是这个单元格的列标题# 逐行读取csv文件with open(filename,'r',encoding="utf-8") as csvfile: reader = csv.DictReader(csvfile) for row in reader...

 处理问题：PyThone field larger than field limit (131072)文件数据过大，而导致csv无法读取，添加下段代码即可解决import sysmaxInt = sys.maxsizedecrement = Truewhile decrement: decrement = False try: csv.field_...