python str字符串转uuid实例
uuid str int 之间的转换
import uudi #str 转 uuid uuid.UUID('12345678123456781234567812345678') uuid.UUID(hex='12345678123456781234567812345678') uuid.UUID('{12345678-1234-5678-1234-567812345678}') uuid.UUID('urn:uuid:12345678-1234-5678-1234-567812345678') #Out:UUID('12345678-1234-5678-1234-567812345678') uuid.UUID(fields=(0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678)) #Out:UUID('12345678-1234-5678-1234-567812345678') #int 转 uuid uuid.UUID(int=0x12345678123456781234567812345678) #Out:UUID('12345678-1234-5678-1234-567812345678') #uuid 转 str str(uuid.uuid4()) #Out:'a0565f88-b20a-4cc1-a6de-11f046bb7100' type(str(uuid.uuid4())) #Out:str python的uuid模块提供UUID类和函数uuid1(), uuid3(), uuid4(), uuid5() 来生成1, 3, 4, 5各个版本的UUID uuid.uuid1([node[, clock_seq]]) : 主机ID, 序列号, 和时间戳来生成UUID, 可保证全球范围的唯一性 uuid.uuid3(namespace, name) : 基于命名空间和名字的MD5散列值 uuid.uuid4() : 基于随机数 uuid.uuid5(namespace, name) : 基于命名空间和名字的SHA-1散列值,同uuid3
补充拓展:python字符串和time互转与时间的加减另加uuid
咱们看代码吧!
# -*-coding:utf-8 -*- __author__ = "ZJL" import uuid,time,datetime #uuid4产生32位随机字母加数字 print(str(uuid.uuid4()).replace("-","")) #uuid3产生基于名字的MD5散列值 print(str(uuid.uuid3(uuid.NAMESPACE_DNS,"username")).replace("-","")) #time转字符串 time_num = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())) print(time_num) #字符串转time t = time.strptime(time_num, '%Y-%m-%d %H:%M:%S') y,m,d,H,M,S = t[:6] print(t) print(datetime.datetime(y,m,d,H,M,S)) #时间的加减 now_time = datetime.datetime.now() #当前时间加半小时 yes_time = now_time + datetime.timedelta(hours=+0.5) #比较时间大小 if now_time>yes_time: print("ok") else: print("no") #当前时间减一天 # yes_time = now_time + datetime.timedelta(days=-1) yes_time_nyr = yes_time.strftime('%Y-%m-%d %H:%M:%S') print(yes_time_nyr)
结果:
import time, datetime #一个月前 today1 = datetime.datetime.today() astmonth = datetime.datetime(today1.year, (today1.month - 1), today1.day, today1.hour, today1.minute,today1.second)
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