使用Go获取目录中文件的数量

Question

How might I get the count of items returned by io/ioutil.ReadDir()?

I have this code, which works, but I have to think isn't the RightWay(tm) in Go.

package main

import "io/ioutil"
import "fmt"

func main() {
    files,_ := ioutil.ReadDir("/Users/dgolliher/Dropbox/INBOX")
    var count int
    for _, f := range files {
        fmt.Println(f.Name())
        count++
    }
    fmt.Println(count)
}

Lines 8-12 seem like way too much to go through to just count the results of ReadDir, but I can't find the correct syntax to get the count without iterating over the range. Help?

Answer 1

Dang it, figured it out right after I posted my question.

Found the answer in http://blog.golang.org/go-slices-usage-and-internals

package main

import "io/ioutil"
import "fmt"

func main() {
    files,_ := ioutil.ReadDir("/Users/dgolliher/Dropbox/INBOX")
    fmt.Println(len(files))
}