擅长:python、mysql、java
<p>您正在旧python版本上运行:</p>
<p>python上的f字符串工作>;=3.6版本
见政治公众人物<a href="https://www.python.org/dev/peps/pep-0498/" rel="nofollow noreferrer">python pep498 f-string</a>
<code>python2.7</code></p>
<pre><code>a = 12345
print(f"python2.7 don't support f-strint {a}")
File "<stdin>", line 1
print(f"python2.7 don't support f-strint {a}")
^
SyntaxError: invalid syntax
</code></pre>
<p><code>python3.8</code></p>
<pre><code>a = 12345
print(f"but on python >3.6 f-strinf work {a}")
but on python >3.6 f-strinf work 12345
</code></pre>