In this image we are using transaction.atomic and i wanna know what is ( F ) in line 44
这意味着字符串将被视为文字。
在Python源代码中,f字符串是一个以f为前缀的文本字符串,它包含大括号内的表达式。表达式将替换为它们的值。 资料来源: Extensive explanation
你也可以在谷歌上搜索: https://www.google.com/search?q=f+python+meaning&rlz=1C1DIMC_enNL827NL827&oq=F+pyt&aqs=chrome.3.0i512j69i57j0i512l3j69i60l3.6236j0j7&sourceid=chrome&ie=UTF-8