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----------------- package main
import (
"log"
)
type meta struct {
name string
age int
}
func (m *meta) copy(dest *meta) {
*dest = *m
}
func main() {
a := meta{name:"aaaaaaa", age:123}
log.Println(a)
var b meta
a.copy(&b)
b.name="fly"
b.age = 77
log.Println("b:", b)
log.Println("a:", a)
}
其实，struct 对象直接赋值给其它变量，就可以了。赋值时，为值拷贝。
package main
import (
"log"
)
type meta struct {
name string
age int
}
func (m *meta) copy(dest *meta) {
*dest = *m
}
func main() {
a := meta{name:"aaaaaaa", age:123}
log.Println(a)
var b meta
a.copy(&b)
b.name="fly"
b.age = 77
c := a
c.name = "zzz"
c.age = 9
log.Println("b:", b)
log.Println("a:", a)
log.Println("c:", c)
}
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