def add_Number(a,b):    if isinstance(a,(int,float,long)) and isinstance(b,(int,float,long)):        return a + b    return Nonedef sub_Number(a,b):    if isinstance(a,(int,long,float)) and isinstance(b,(int,long,float)):        return  a - b    return Nonedef RondNumber():    '''    练习：1 随机生成一个1-100中间的一个整数，然后你去输入一个数，如果大了，就提示大了，    然后让用户重新输入，如果是小了，那么提示小了，再让用户重新输入，    如果用户输入的数是等于随机生成的数，那么就一下你一共猜测的总数是多少，随机数是多少，结束程序    '''    ncount = 0 #计数    NumRand = int(random.random()*100)    while True:        ncount += 1        Number = int(raw_input('eter number:\n'))        if Number == NumRand:            print 'yes!'            sys.exit()        elif Number > NumRand:            print '输入大'        else:            print '输入小'def game_Number():    random_number= random.randint(1,101)    times=0    while 1:        times+=1        user_input_number = input("please input your guess number:")        print user_input_number        print type(user_input_number)        if user_input_number == random_number:            print "you guess %s times" %times            print "the random number is %s" %random_number            break        elif user_input_number > random_number:            print "bigger,please try again!"        else:            print "less,please try again!"if __name__ == "__main__":    #game_Number()    #RondNumber()    print add_Number(2,33)