unsafe.Sizeof 加和
package main
import (
"fmt"
"unsafe"
)
type ASDF struct {
A uint64
B uint64
C uint64
D uint64
E uint64
F string
}
func (s *ASDF) size() int {
size := int(unsafe.Sizeof(*s))
size += len(s.F)
return size
}
func sizeASDF(s []ASDF) int {
size := 0
s = s[:cap(s)]
size += cap(s) * int(unsafe.Sizeof(s))
for i := range s {
size += (&s[i]).size()
}
return size
}
func main() {
a := []ASDF{}
b := ASDF{}
b.A = 1
b.B = 2
b.C = 3
b.D = 4
b.E = 5
b.F = "ASrtertetetetetetetDF"
fmt.Println((&b).size())
a = append(a, b)
c := ASDF{}
c.A = 10
c.B = 20
c.C = 30
c.D = 40
c.E = 50
c.F = "ASetDF"
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