python 自动化之路 day 06

Posted 2020-08-19

ATM作业讲解：

 

数据访问层

业务逻辑层

 

time & datetime模块

 1 import time
 2 
 3 
 4 # print(time.clock()) #返回处理器时间,3.3开始已废弃 , 改成了time.process_time()测量处理器运算时间,不包括sleep时间,不稳定,mac上测不出来
 5 # print(time.altzone)  #返回与utc时间的时间差,以秒计算\\
 6 # print(time.asctime()) #返回时间格式"Fri Aug 19 11:14:16 2016",
 7 # print(time.localtime()) #返回本地时间 的struct time对象格式
 8 # print(time.gmtime(time.time()-800000)) #返回utc时间的struc时间对象格式
 9 
10 # print(time.asctime(time.localtime())) #返回时间格式"Fri Aug 19 11:14:16 2016",
11 #print(time.ctime()) #返回Fri Aug 19 12:38:29 2016 格式, 同上
12 
13 
14 
15 # 日期字符串 转成  时间戳
16 # string_2_struct = time.strptime("2016/05/22","%Y/%m/%d") #将 日期字符串 转成 struct时间对象格式
17 # print(string_2_struct)
18 # #
19 # struct_2_stamp = time.mktime(string_2_struct) #将struct时间对象转成时间戳
20 # print(struct_2_stamp)
21 
22 
23 
24 #将时间戳转为字符串格式
25 # print(time.gmtime(time.time()-86640)) #将utc时间戳转换成struct_time格式
26 # print(time.strftime("%Y-%m-%d %H:%M:%S",time.gmtime()) ) #将utc struct_time格式转成指定的字符串格式
27 
28 
29 
30 
31 
32 #时间加减
33 import datetime
34 
35 # print(datetime.datetime.now()) #返回 2016-08-19 12:47:03.941925
36 #print(datetime.date.fromtimestamp(time.time()) )  # 时间戳直接转成日期格式 2016-08-19
37 # print(datetime.datetime.now() )
38 # print(datetime.datetime.now() + datetime.timedelta(3)) #当前时间+3天
39 # print(datetime.datetime.now() + datetime.timedelta(-3)) #当前时间-3天
40 # print(datetime.datetime.now() + datetime.timedelta(hours=3)) #当前时间+3小时
41 # print(datetime.datetime.now() + datetime.timedelta(minutes=30)) #当前时间+30分
42 
43 
44 #
45 # c_time  = datetime.datetime.now()
46 # print(c_time.replace(minute=3,hour=2)) #时间替换

View Code

 

 

Directive	Meaning	Notes
%a	Locale’s abbreviated weekday name.
%A	Locale’s full weekday name.
%b	Locale’s abbreviated month name.
%B	Locale’s full month name.
%c	Locale’s appropriate date and time representation.
%d	Day of the month as a decimal number [01,31].
%H	Hour (24-hour clock) as a decimal number [00,23].
%I	Hour (12-hour clock) as a decimal number [01,12].
%j	Day of the year as a decimal number [001,366].
%m	Month as a decimal number [01,12].
%M	Minute as a decimal number [00,59].
%p	Locale’s equivalent of either AM or PM.	(1)
%S	Second as a decimal number [00,61].	(2)
%U	Week number of the year (Sunday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Sunday are considered to be in week 0.	(3)
%w	Weekday as a decimal number [0(Sunday),6].
%W	Week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0.	(3)
%x	Locale’s appropriate date representation.
%X	Locale’s appropriate time representation.
%y	Year without century as a decimal number [00,99].
%Y	Year with century as a decimal number.
%z	Time zone offset indicating a positive or negative time difference from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour digits and M represents decimal minute digits [-23:59, +23:59].
%Z	Time zone name (no characters if no time zone exists).
%%	A literal ‘%‘ character.

 

random模块

随机数

1 import random
2 print(random.random())
3 print(random.randint(1,5))
4 print(random.randrange(1,2))

 

生成随机验证码

 

1 import random
2 
3 import string
4 
5 str_source = string.ascii_letters + string.digits
6 print(‘‘.join(random.sample(str_source,7)))

 

1 2 3 4 5 6 7 8 9 10

import random checkcode = ‘‘ for i in range(4):     current = random.randrange(0,4)     if current != i:         temp = chr(random.randint(65,90))     else:         temp = random.randint(0,9)     checkcode += str(temp) print checkcode