Golang 查看變量所占內存字節

package main

import (
    "fmt"
    "unsafe"
)

func main() {
    var flag bool
    var n1 int64 = 10
    var name string = "小白"

    fmt.Printf("int的字節大小", unsafe.Sizeof(n1))
    fmt.Println()
    fmt.Printf("string的字節大小", unsafe.Sizeof(name))
    fmt.Println()
    fmt.Printf("bool的字節大小", unsafe.Sizeof(flag))

}