golang 代码片段

文件按行读取.go

f, err := os.Open("a.txt")
defer f.Close()
if nil == err {
    buff := bufio.NewReader(f)
    for {
        line, err := buff.ReadString('\n')
        if err != nil || io.EOF == err{
            break
        }
        fmt.Println(line)
    }
}

遍历一个目录.go

package main

import (
    "fmt"
    "os"
    "path/filepath"
)

func walk(path string) {
    err := filepath.Walk(path, func(path string, f os.FileInfo, err error) error {
        if f == nil {
            return err
        }
        if f.IsDir() {
            return nil
        }
        fmt.Println(path)
        return nil
    })
    if err != nil {
        fmt.Println(err)
    }
}

func main() {
    walk("./")
}