Introduction

In C#, variables have a fixed data type. In languages like Python, you can use a variable without first declaring it and can choose to store different types of data with it after you first define it. Neither of those things are possible in C#. Before you can use a variable, you must declare it and you must decide the data type to use. You have a lot of choice. Data Type: Range; byte. 0 .. 255 ... ................
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