本文介绍如何打印调用进行代码的。

打印使用的runtime package中的Stack()函数

func Stack(buf []byte, all bool) int
Stack formats a stack trace of the calling routine into buf and returns the number of bytes written to buf. If all is true, Stack formats stack traces of all other goroutines into buf after the trace for the current goroutine.

example

package main
import (
    "runtime"
    "time"
    "fmt"
)
func main() {
    go power1()
    for {
        time.Sleep(time.Duration(1)*time.Minute)
    }
}


func power1(){
    var buf [1024]byte
    fmt.Println("power1.....")
    n := runtime.Stack(buf[:], true)
    fmt.Println(string(buf[:]), n)
}

输出结果:

power1.....
goroutine 5 [running]:
main.power1()
/home/lanyang/src/t.go:29 +0xec
created by main.main
/home/lanyang/src/t.go:14 +0x3c
goroutine 1 [sleep]:
time.Sleep(0xdf8475800)
/home/lanyang/src/t.go:59 +0x107
main.main()
/home/lanyang/src/t.go:17 +0x4f
303

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本文由 华域联盟 原创撰写:准格尔旗术交电子产品销售服务部 » go 代码的调试—打印调用堆栈的实例