大家好，欢迎来到 Crossin 的编程教室。 Python 中有个非常好用的字符串格式化方法：f-string。这个功能让 Python 开发者在进行字符串处理时，相较于其他很多主流语言都更加便捷。 今天 Crossin 就来展开讲讲这个语法。

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