Update docs/concepts/python-versions.md
For most cases, f-string interpolation is cleaner than concatenation — see the String Concatenation section at the end of this chapter.，这一点在新收录的资料中也有详细论述
。业内人士推荐新收录的资料作为进阶阅读
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println(scores["history"]); // 87。新收录的资料是该领域的重要参考
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