使用golang实现python的计时器[关闭]

Question

Python:

with Timer() as t :
          // TODO a lot

print "scan all disks,cost:%s secs" % t.secs

Now,how to use golang to achieve this?

I had google this but I can not find any answers I want.

Why am I post my questions in here and then got downvote?

Thank you your help!!!

Answer 1

You can write a function that accepts a function, runs it and prints the time:

import (
  "time"
  "fmt"
)

func TimeIt(f func(), description string) {
   start := time.Now()
   f()
   fmt.Printf("Running %s took %v
", description, time.Since(start))
}

And then trigger it like so:

func main() {
    TimeIt(doSomething, "Doing something")
}

Or just sprinkle it on pieces of code as a closure:

TimeIt(func() {
     do()
     some()
     stuff()
   },
   "whatever")