前言

golang 踩坑，其他博客太坑了

问题

1. 下载 gopkg.in/yaml.v2

go get gopkg.in/yaml.v2复制代码

2. 使用 gopkg.in/yaml.v2 官方提供的例子:

package mainimport ("fmt""log""gopkg.in/yaml.v2")var data = `a: Easy!b:  c: 2  d: [3, 4]`// Note: struct fields must be public in order for unmarshal to// correctly populate the data.type T struct {A stringB struct {RenamedC int   `yaml:"c"`D        []int `yaml:",flow"`}}func main() {t := T{}err := yaml.Unmarshal([]byte(data), &t)if err != nil {log.Fatalf("error: %v", err)}fmt.Printf("--- t:\n%v\n\n", t)d, err := yaml.Marshal(&t)if err != nil {log.Fatalf("error: %v", err)}fmt.Printf("--- t dump:\n%s\n\n", string(d))m := make(map[interface{}]interface{})err = yaml.Unmarshal([]byte(data), &m)if err != nil {log.Fatalf("error: %v", err)}fmt.Printf("--- m:\n%v\n\n", m)d, err = yaml.Marshal(&m)if err != nil {log.Fatalf("error: %v", err)}fmt.Printf("--- m dump:\n%s\n\n", string(d))}复制代码

均会出现问题：

go: finding module for package gopkg.in/yaml.v2main.go:7:2: cannot find module providing package gopkg.in/yaml.v2: unrecognized import path "gopkg.in": parse https://gopkg.in/?go-get=1: no go-import meta tags ()复制代码

解决方法

查看官方文档：labix.org/gopkg.in其中提到：

The actual implementation of the package is in GitHub:https://github.com/go-yaml/yaml复制代码

因此，改用

go get github.com/go-yaml/yaml复制代码

将官方例子的 import 改为：

import ("fmt""log""github.com/go-yaml/yaml")复制代码

执行成功：

--- t:{Easy! {2 [3 4]}}--- t dump:a: Easy!b:  c: 2  d: [3, 4]--- m:map[a:Easy! b:map[c:2 d:[3 4]]]--- m dump:a: Easy!b:  c: 2  d:  - 3  - 4复制代码

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