import random # ret = random.random() #随机取0-1中间的浮点数 # ret = random.randint(1,3) #随机取1-3中间的整数 # ret = random.randrange(1,3) #取左不取右 # ret = random.choice([11,22,33]) #从列表中随机选择一个元素 # ret = random.sample([11,22,33,44,55],2) #从列表中随机选取2个元素 # ret = random.uniform(1,5) #选取1-5中间的浮点型小数 # ret = [1,2,3,4,5] # random.shuffle(ret) #打乱列表中元素的顺序 # print(ret) #生成一个四位随机数 def v_code(): ret = '' for i in range(4): s = random.randint(0,9) v = chr(random.randint(65,122)) #print([s,v]) i = str(random.choice([s,v])) ret += i return ret ret = v_code() print(ret)