python常用方法

 1 #python3.9.1
 2 # #1.逐行读取文件返回list
 3 # def getList(dir,fileNm):
 4 #     list = []
 5 #     fl = open(dir+"\"+fileNm)
 6 #     line = fl.readline()
 7 #     while line:
 8 #         line = line.strip('
')
 9 #         list.append(line)
10 #         line = fl.readline()
11 #     fl.close()
12 #     return list
13 
14 # #2.python操作excel
15 # import openpyxl
16 # workdir = r""
17 # filenm = ""
18 # wb = openpyxl.load_workbook(filenm=workdir+"\"+filenm)
19 # sh = wb['']
20 # cell_value = sh[''].value
21 
22 # #3.list比较
23 # #list2没有
24 # result1 = set(list1).difference(set(list2))
25 # #list1没有
26 # result2 = set(list2).difference(set(list1))
27 
28 ##4.写入文件
29 # with open(workDir+"\"+f,'w') as file_object:
30 #     file_object.write(content+"
")
31 
32 # #5.list去重，会改变顺序
33 # list(set(lists))
34 
35 # #6.list去重，不改变顺序
36 # def distinctList(list1):
37 #     list2 = []
38 #     for i in list1:
39 #         if i not in list2:
40 #             list2.append(i)
41 #     return list2