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lines changed Original file line number Diff line number Diff line change @@ -73,8 +73,11 @@ $ go get github.com/Tinywan/golang-tutorial
7373###### 30 - 错误处理
7474###### 31 - 自定义错误
7575###### 32 -Panic 和 Recover
76- ###### 33 - 头等函数
77- ######34 - 反射
76+ #### 头等函数
77+ ###### 33 - 头等函数
78+ #### 反射
79+ ###### 34 - 反射
80+ #### 文件操作
7881###### [ 35 - 读文件] ( /docs/golang_tutorial_35.md )
7982
8083#### 文档
Original file line number Diff line number Diff line change @@ -2,12 +2,20 @@ package main
22
33import (
44 "fmt"
5+ "os"
6+ "strings"
57)
68
7- var age int
8-
99func main () {
10- name := "Tinywan"
11- fmt .Println (name )
12- fmt .Println (name )
13- }
10+ os .Setenv ("Name" , "Tinywan" )
11+ fmt .Println ("Name = " , os .Getenv ("Name" ))
12+ fmt .Println ("Bar" , os .Getenv ("bar" ))
13+ fmt .Println ()
14+
15+ fmt .Println ()
16+ for _ , e := range os .Environ () {
17+ pair := strings .Split (e , "=" )
18+ fmt .Println (pair [0 ])
19+ }
20+ }
21+ go
Original file line number Diff line number Diff line change 11
2235 - 读取文件
33========================
4-
4+ <div align =" center " >
5+ <img src =" ../images/golang-read-files.png " /><br ><br >
6+ </div >
57上一节:[ 第十六篇 结构体] ( /docs/golang_tutorial_16.md )
68下一节:[ 第十八篇 接口一] ( /docs/golang_tutorial_18.md )
79
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