What does type conversion mean in go language?

Type conversion in go language means converting a variable of one data type into a variable of another type. The basic format of type conversion in go language is "type_name(expression)", where the parameter type_name represents the type, and expression represents an expression.

The environment of this article: Windows 7 system, Go1.11.2 version, Dell G3 computer.

Recommended tutorial: "golang"

Go language type conversion

Type conversion is used Convert a variable of one data type to a variable of another type. The basic format of Go language type conversion is as follows:

type_name(expression)

type_name is the type and expression is the expression.

Example

In the following example, the integer type is converted into a floating point type, the result is calculated, and the result is assigned to a floating point variable:

Example

package main
import "fmt"
func main() {
   var sum int = 17
   var count int = 5
   var mean float32
   
   mean = float32(sum)/float32(count)
   fmt.Printf("mean 的值为: %f\n",mean)
}

The execution output result of the above example is:

mean 的值为: 3.400000

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