小学生でもわかるGolangの例外処理リカバリーパニック

package main

import (
	"fmt"
)

func main(){

	defer func(){
		err := recover()
		if err ! = nil{
			fmt.Println("Exception caught")
		}
	}()

	panic("Exception raised") //throw an exception, representing the error code

}

package main

import (
	"fmt"
)

func Calculate(){
    
	panic("Exception occurred") // Also represents an error code
}



func main(){

	defer func(){
		err := recover()
		if err ! = nil{
			fmt.Println("Exception caught")
		}
	}()

	go Calculate()
	
	Sleep(time.Second*3) //prevent the main coexistence from exiting too early, resulting in the subcoexistence not being executed

}

package main

import (
	"fmt"
	"time"
)

func Calculate(){

	defer func(){
		err := recover()
		if err ! = nil{
			fmt.Println("concatenated internal catch exception")
		}
	}()

	panic("Exception occurred")
}



func main(){

	go Calculate()

	time.Sleep(time.Second*3)

}