code
package main
import (
"fmt"
)
func main() {
x :=
fmt.Println(x)
{
x := -
fmt.Println(x)
}
fmt.Println(x)
}
结果
200
-300
200
package main
import (
"fmt"
)
func main() {
x :=
fmt.Println(x)
{
x := -
fmt.Println(x)
}
fmt.Println(x)
}
结果
200
-300
200