Please use caution in the C # var

we all know,For example, Swift 、 Python,,You do not need to declare a special variable type - although they are type-safe languages,But it can help you to dynamically infer the type of a variable in context。

Python do what you do,Write a name is the default declare a variable;And Swift,It is more close to our topic,It also uses[crayon-5f0a6[……]

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