源于: 功能类代码 – ClusterClass.py
"sep".join(iterable)
join
用于以指定分隔符 sep
将可迭代对象 iterable
(必须为str类型) 连接为一个新的字符串
栗子1:
分别以指定分隔符对字符串、列表、元组、字典元素进行连接
string = "test"
lis = ['w', 'e', 'q']
tpl = ('w', 'e', 'q')
dic = {"55": 5, "44": 4, "22": 2, "33": 3, "11": 1}
print("->".join(string)) # a = "11".join(string) print(a) print(type(a))
print("".join(tpl))
print(" ".join(lis))
print("key is : [%s] " % (",".join(dic)))
结果为:
t->e->s->t
weq
w e q
key is : [55,44,22,33,11]
栗子2:
字符串去重并按从大到小排列
import os
words = "wsasdeddcewtttwssa"
words_set = set(words) # 集合特性实现去重 字符串集合化
words_list = list(words_set) # 集合列表化
words_list.sort(reverse=True) # 设置排序为从大到小
new_words = "".join(words_list) # join方法以空位分隔符拼接列表元素位新字符串
print(words_list)
print(new_words)
结果为:
['w', 't', 's', 'e', 'd', 'c', 'a']
wtsedca
os.path.join(path,path1,...)
- 返回多个路径拼接后的路径
- 忽略绝对路径之前的路径
import os
print(os.path.join("/user/", "test/", "python"))
print(os.path.join("/user", "/test", "/python"), end="")
结果为:
/user/test/python
/python
学习链接:
python中join函数
来源:CSDN
作者:北木.
链接:https://blog.csdn.net/weixin_43283397/article/details/103244794