1 import jsonpath
2 import os
3 import xlrd
4
5 from config.setting import log
6
7
8 def get_value(dic, key):
9 '''
10 这个函数是从一个字典里面，根据key获取vlaue
11 :param dic:传一个字典
12 :param key:传一个
13 :return:如果有，返回key取到value，如果key没有，返回空字符串
14 '''
15 result = jsonpath.jsonpath(dic, '$..%s' % key)
16 if result:
17 return result[0]
18 return ''
19
20
21 class GetTestData:
22
23 @staticmethod
24 def data_for_txt(file_name):
25 log.debug('开始读取参数化文件%s' % file_name)
26 if os.path.exists(file_name):
27 with open(file_name, encoding='utf-8') as fr:
28 data = []
29 for line in fr:
30 if line.strip():
31 line_data = line.strip().split(',')
32 data.append(line_data)
33 return data
34 log.error('%s参数化文件不存在' % file_name)
35 raise Exception('%s参数化文件不存在' % file_name)
36
37 @staticmethod
38 def data_for_excel(file_name, sheet_name=None):
39 log.debug('开始读取参数化文件%s' % file_name)
40 if os.path.exists(file_name):
41 data = []
42 book = xlrd.open_workbook(file_name)
43 if sheet_name:
44 sheet = book.sheet_by_name(sheet_name)
45 else:
46 sheet = book.sheet_by_index(0)
47 for row_num in range(1, sheet.nrows):
48 row_data = sheet.row_values(row_num)
49 data.append(row_data)
50 return data
51 log.error('%s参数化文件不存在' % file_name)
52 raise Exception('%s参数化文件不存在' % file_name)
53
54 @staticmethod
55 def data_for_mysql(sql):
56 pass
57
58
59 class Singleton:
60 instance = None
61
62 def __new__(cls, *args, **kwargs):
63 if cls.instance:
64 return cls.instance
65 cls.instance = super().__new__(cls) #
66 return cls.instance
来源：https://www.cnblogs.com/jiadan/p/12016778.html