What are the data types in go language?

The data types of Go language include basic data types, composite data types, reference types and special data types. Detailed introduction: 1. Basic data types include bool, int, uint, float32, float64, complex64, etc.; 2. Composite data types include string, array, slice, map, etc.; 3. Reference types include pointer, function, interface; 4. Special types include chan and error.

The operating environment of this tutorial: Windows 10 system, go1.20.1 version, Dell G3 computer.

As a strongly typed static programming language, Go language has rich data types for storing different types of data. The following will introduce the commonly used data types in Go language.

1. **Basic data types**:

- `bool`: Represents Boolean type values, true and false.

- `int`: Indicates the integer type, which may be int32 or int64 depending on the number of digits in the computer system.

- `uint`: Represents an unsigned integer type, which may be uint32 or uint64 depending on the number of bits in the computer system.

- `float32`: Represents single-precision floating point number.

- `float64`: Represents a double-precision floating point number.

- `complex64`: Represents a complex number with 32-bit real part and 32-bit imaginary part.

- `complex128`: Represents a complex number with 64-bit real part and 64-bit imaginary part.

- `byte`: represents an alias of a certain ASCII character, actually an alias of uint8.

- `rune`: represents an alias of a certain Unicode character, which is actually an alias of int32.

2. **Composite data type**:

- `string`: Represents the string type and can store strings of any length.

- `array`: Represents an array type, used to store fixed-length elements of the same type.

- `slice`: Represents the slice type, used to store variable-length element sequences.

- `map`: represents a dictionary type, used to store a collection of key-value pairs.

- `struct`: Represents a structure type, used to encapsulate multiple different types of data.

3. **Reference type**:

- `pointer`: represents a pointer type, storing a value pointing to a certain memory address.

- `function`: Indicates the function type, the type that can be passed as parameters and returned as a return value.

- `interface`: Represents an interface type, a type used to define a set of methods.

In addition, the Go language also provides some special data types, such as `chan` and `error`, etc., for implementing functions such as concurrency and error handling.

To sum up, the Go language has rich data types for storing different types of data. Reasonable selection and use of these data types can effectively meet various programming needs and improve code efficiency and readability.

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