Golang的終端進度條：pb

Golang的終端進度條：pb。

Installation

go get github.com/cheggaaa/pb

Usage

package main

import (
    "github.com/cheggaaa/pb"
    "time"
)
func main() {
    count := 100000
    bar := pb.StartNew(count)
    for i := 0; i < count; i++ {
        bar.Increment()
        time.Sleep(time.Millisecond)
    }
    bar.FinishPrint("The End!")
}</pre>

Result will be like this: 
> go run test.go
37158 / 100000 [================>_______________________________] 37.16% 1m11s
 
More functions? 
// create bar
bar := pb.New(count)

// refresh info every second (default 200ms)
bar.SetRefreshRate(time.Second)

// show percents (by default already true)
bar.ShowPercent = true

// show bar (by default already true)
bar.ShowBar = true

// no need counters
bar.ShowCounters = false

// show "time left"
bar.ShowTimeLeft = true

// show average speed    
bar.ShowSpeed = true

// sets the width of the progress bar
bar.SetWidth(80)

// sets the width of the progress bar, but if terminal size smaller will be ignored
bar.SetMaxWidth(80)

// convert output to readable format (like KB, MB)     
bar.SetUnits(pb.U_BYTES)

// and start
bar.Start()


Want handle progress of io operations? 
// create and start bar
bar := pb.New(myDataLen).SetUnits(pb.U_BYTES)
bar.Start()

// my io.Reader
r := myReader

// my io.Writer
w := myWriter

// create multi writer
writer := io.MultiWriter(w, bar)

// and copy
io.Copy(writer, r)

// show example/copy/copy.go for advanced example


Not like the looks? 
bar.Format("<.- >")
項目主頁：http://www.baiduhome.net/lib/view/home/1439112227379