package mainimport(    "fmt")const(    B float64 = 1 <<(iota * 10)    KB    MB    GB    TB    PB    EB    ZB    YB)func main() {    fmt.Println(B)    fmt.Println(KB)    fmt.Println(MB)    fmt.Println(GB)    fmt.Println(TB)    fmt.Println(PB)    fmt.Println(EB)    fmt.Println(ZB)    fmt.Println(YB)}