How can Python concatenate two strings?

In Python, you can merge two strings using the “+” operator. For example:

str1 = "Hello"
str2 = "World"
result = str1 + str2
print(result)  # 输出结果：HelloWorld

In addition, you can also use the join() method of strings to concatenate multiple strings. For example:

str1 = "Hello"
str2 = "World"
str3 = "!"
result = "".join([str1, str2, str3])
print(result)  # 输出结果：HelloWorld!

When using the join() method, it is necessary to pass multiple strings as a list and specify the character to be used for joining before the first string (in this case, an empty string “”). This allows all the strings in the list to be combined in order into one string.