01-Introduction

Using the real-world address label "Cainiao Station" as an example to show how it represents an actual address, explaining the purpose of variables.
A variable is a box for storing data. We use the data inside variables by referring to the box's name.

02-Answer to Previous Exercise

Solving the last lesson's exercise, outputting "Where there's a will, there's a way."
I share this quote with all of you, hoping we can finish this entire course together!

03-Variable Names

In the programming world, naming a variable is like naming your child - it's a very important step.
3.1 Identifiers
The first character
Subsequent characters
3.2 Keywords
3.3 Regular Identifiers
3.4 Raw Identifiers

04-Defining and Using Variables

Mutability modifier variable name: variable type = initial value
Mutability modifiers:
let
var
const
Modifying variable values
Printing variable values
println(b)

05-Basic Data Types

Introducing each data type, literals, and how to define and print them.
Integer Types
Signed integers
Int8, Int16, Int32, Int64, IntNative
These are types used to represent signed integer values with encoding lengths of 8-bit, 16-bit, 32-bit, 64-bit, and platform-dependent sizes respectively.
Focusing mainly on Int8 and Int16
Unsigned integers
UInt8, UInt16
Floating-point types
Boolean type
Character type
String type
Tuple type
Array type
Range type
Unit type
Nothing type

06-Exercise

Using variables, define some personal information and print a self-introduction.

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