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。

One thing to note here is you can also use double triple quotes for multiline strings(""" """ like this). Do you remember I said(ok wrote) there is something called unassigned strings in this post?

What's This Book About? This book walks you through 7 full-featured applications built with Python and Tkinter. Each application will teach you different aspects of Tkinter which you can use for your ...