Use Go's empty interface:
i.(type) can only be used in switch, the function has no return value
func m_type(i interface{}) { switch i.(type) {
case string:
//...
case int:
//...
} return}Use reflection:
reflect.TypeOf(x)
package main
import (
"fmt"
"reflect"
)
func main() {
var x int32 = 20
fmt.Println("type:", reflect.TypeOf(x))
}Summary: The first method requires knowing how many types there are, and the second method can be used for any object.
Recommended to study "golang tutorial"
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