a.join()#用来连接字符串的

# a.join()#用来连接字符串的
stu_list=['xiao','xiaobai','xiaolan']

stu_str=''.join(stu_list)#
print(stu_str)

stu_str='*'.join(stu_list)#用*号连接字符串
print(stu_str)