join() is an in-built method in Python and it is used to join elements of the list, string etc with the given str separator.

join()是Python中的一种内置方法，用于通过给定的str分隔符连接列表，字符串等元素。

Note: Method is called with the separator and as arguments elements are provided, then the final (returned) string is a joined string by the separator string.

注意：方法是使用分隔符调用的，并提供了arguments元素，然后最后一个(返回的)字符串是分隔符字符串连接的字符串。

Syntax:

句法：

 String.join(iterable)

Example 1: Joining string with hyphen ('-') character

示例1：使用连字符('-')连接字符串

# s as separator string 
s = "-"
# str as sequence of strings
str = ("Hello", "World", "How are?")
# join and print the string
print (s.join(str))

Output

输出量

    Hello-World-How are?

Example 2: Joining string with spaces, a student detail is provided as string sequences

示例2：将字符串与空格连接，将学生详细信息作为字符串序列提供

# s as separator string (contains - space)
s = " "
# a student details
first_name = "Amit"
second_name = "Shukla"
age = "21"
branch = "B.Tech"
# creating string sequences
str = (first_name, second_name, age, branch)
# value of str before joining
print "str before join..."
print (str)
# join and print the string
print "str after join..."
print (s.join(str))

Output

输出量

    str before join...('Amit', 'Shukla', '21', 'B.Tech')str after join...Amit Shukla 21 B.Tech

翻译自: https://www.includehelp.com/python/string-join-method-with-example.aspx