Python,join()メソッドの使用

Python join()                            

str.join(sequence)

sequence           、   、  、  

str = "-";
seq = ("a", "b", "c")  #     
print str.join(seq)

a-b-c

#1)       
LIST =["I","am","bigship","come","from","China"]
print (' '.join(LIST))
#2)        
 
str="i am bigship"
print('->'.join(str))
 
#3)       
TUPLE = ("I","am","bigship","come","from","China")
print(' '.join(TUPLE))
 
#4)       
Dir ={'b':1,'i':2,'g':3,'s':4,'h':5,'p':7}
print( ':'.join(Dir))

I am bigship come from China
i-> ->a->m-> ->b->i->g->s->h->i->p
I am bigship come from China
b:i:g:s:h:p

list = ['a','b','c','d']
print('+'.join(list))

     ：
a+b+c+d