Visual Studio 在将字符串与数字组合时出现语法错误

Question

currently having some issues with visual code that dont make sense. tried printing out the following sentence in python:

 count = 0
 message = f"We have {count} even numbers."
 print(message)

With the following error:

message = f"We have {count} even numbers."
                                        ^
invalid syntax

I'm just wondering what the correct would be, do i need to add a + around the count like java?

Answer 1

It's probably because you're using a version that is under 3.6, if so, use %s string formatting:

count = 0
message = "We have %s even numbers." % count
print(message)

Or use str.format :

count = 0
message = "We have {} even numbers.".format(count)
print(message)

Answer 2

It works even for pyhton 3.5 or less

num = 10
string_data = "you have {} apples.".format(num)
print(string_data)