http://play.golang.org/p/j-Y0mQzTdPpackagemainimport"fmt"typeUselessStructstruct{aintbint}funcmain(){mySlice:=make([]*UselessStruct,5)fori:=0;i!=5;i++{mySlice=append(mySlice,&UselessStruct{})}fmt.Println(mySlice)}输出:[0xc0100351600xc0100351700xc0100351800xc0100351900xc0100351a0]我想做的是为5个无用结构预分配内存，
