Python - 通过多个分隔符连接字符串

给定两个字符串，任务是编写一个Python程序，通过分隔符列表中的每个分隔符连接它们。

Input : test_str1 = ‘Geeksforgeeks’, test_str2 = “Best”, join_list = [“+”, “*”, “-“, “$”, “,”, “@”]

Output : [‘Geeksforgeeks+Best’, ‘Geeksforgeeks*Best’, ‘Geeksforgeeks-Best’, ‘Geeksforgeeks$Best’, ‘Geeksforgeeks,Best’, ‘Geeksforgeeks@Best’]

Explanation : Elements are concatenated with all desired delimiters.

Input : test_str1 = ‘Geeksforgeeks’, test_str2 = “Best”, join_list = [“+”, “*”, “-“, “$”]

Output : [‘Geeksforgeeks+Best’, ‘Geeksforgeeks*Best’, ‘Geeksforgeeks-Best’, ‘Geeksforgeeks$Best’]

Explanation : Elements are concatenated with all desired delimiters.

方法 1：使用列表理解

在这里，我们使用列表理解中的循环遍历列表中的所有分隔符，并且 +运算符执行连接任务。

例子：

Python3

# initializing strings
test_str1 = 'Geeksforgeeks'
test_str2 = "Best"
  
# printing original strings
print("The original string 1 is : " + str(test_str1))
print("The original string 2 is : " + str(test_str2))
  
# initializing join list
join_list = ["+", "*", "-", "$", ",", "@"]
  
# + operator used for concatenations
res = [test_str1 + delim + test_str2 for delim in join_list]
  
# printing result
print("All delimiters concatenations : " + str(res))

输出：

The original string 1 is : Geeksforgeeks

The original string 2 is : Best

All delimiters concatenations : [‘Geeksforgeeks+Best’, ‘Geeksforgeeks*Best’, ‘Geeksforgeeks-Best’, ‘Geeksforgeeks$Best’, ‘Geeksforgeeks,Best’, ‘Geeksforgeeks@Best’]

方法 2：使用join()和列表推导

与上述方法类似，不同之处在于使用 join() 执行加入任务，而不是 +运算符。

例子：

蟒蛇3

# initializing strings
test_str1 = 'Geeksforgeeks'
test_str2 = "Best"
  
# printing original strings
print("The original string 1 is : " + str(test_str1))
print("The original string 2 is : " + str(test_str2))
  
# initializing join list
join_list = ["+", "*", "-", "$", ",", "@"]
  
# join() operator used for concatenations
res = [delim.join([test_str1, test_str2]) for delim in join_list]
  
# printing result
print("All delimiters concatenations : " + str(res))

输出：

The original string 1 is : Geeksforgeeks

The original string 2 is : Best

All delimiters concatenations : [‘Geeksforgeeks+Best’, ‘Geeksforgeeks*Best’, ‘Geeksforgeeks-Best’, ‘Geeksforgeeks$Best’, ‘Geeksforgeeks,Best’, ‘Geeksforgeeks@Best’]