程序耗时判断

package main

import (
	"fmt"
	"time"
)


func main()  {
	t := time.Now()
	// 具体操作1
	ts := time.Since(t)
	fmt.Println("具体操作1: ", ts)
	t = time.Now()
	// 具体操作2
	ts = time.Since(t)
	fmt.Println("具体操作2: ", ts)
    // ....
}