Merge pull request #739 from mistadikay/master
Fix failing build for English version
This commit is contained in:
astaxie
GitHub
8
.gitignore
vendored
8
.gitignore
vendored
@@ -2,7 +2,7 @@
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pkg/*
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*.html
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*.exe
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<<<<<<< HEAD
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=======
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>>>>>>> eead24cf064976b648de5826eab51880c803b0fa
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_book
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*.epub
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*.pdf
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.DS_Store
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@@ -1,8 +0,0 @@
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*~
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pkg/*
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*.html
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*.exe
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<<<<<<< HEAD
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=======
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>>>>>>> eead24cf064976b648de5826eab51880c803b0fa
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@@ -1,46 +0,0 @@
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# Multiple Language Versions
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<<<<<<< HEAD
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=======
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* [English](en/)
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>>>>>>> eead24cf064976b648de5826eab51880c803b0fa
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* [French](fr/)
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* [Spanish](es/)
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* [中文](zh/)
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* [日本語](ja/)
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* [Turkish](tr/)
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* [Português - Brasil](pt-br/)
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* [German](de/)
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* [Русский](ru/)
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# Donate
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AliPay: <img src="zh/images/alipay.png" alt="alipay" width="100" height="100">
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English Donate:[donate](http://beego.me/donate)
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## Community
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QQ群：148647580
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BBS：[http://golanghome.com/](http://golanghome.com/)
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## Acknowledgments
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- [四月份平民](https://plus.google.com/110445767383269817959) (review代码)
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- [Hong Ruiqi](https://github.com/hongruiqi) (review代码)
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- [BianJiang](https://github.com/border) (编写go开发工具Vim和Emacs的设置)
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- [Oling Cat](https://github.com/OlingCat)(review代码)
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- [Wenlei Wu](mailto:spadesacn@gmail.com)(提供一些图片展示)
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- [polaris](https://github.com/polaris1119)(review书)
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- [雨痕](https://github.com/qyuhen)(review第二章)
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<<<<<<< HEAD
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=======
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Translator:
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- [LarryBattle](https://github.com/LarryBattle)
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>>>>>>> eead24cf064976b648de5826eab51880c803b0fa
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## License
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Book License: [CC BY-SA 3.0 License](http://creativecommons.org/licenses/by-sa/3.0/)
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Code License: [BSD 3-Clause License](<https://github.com/astaxie/build-web-application-with-golang/blob/master/LICENSE.md>)
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56
en/07.4.md
56
en/07.4.md
@@ -9,11 +9,11 @@ The following demonstrates the template mechanism:
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Figure 7.1 Template mechanism
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Most of the content that web applications respond to clients with is static, and the dynamic parts are usually very small. For example, if you need to display a list users who have visited a page, only the user name would be dynamic. The style of the list remains the same. As you can see, templates are useful for reusing static content.
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Most of the content that web applications respond to clients with is static, and the dynamic parts are usually very small. For example, if you need to display a list users who have visited a page, only the user name would be dynamic. The style of the list remains the same. As you can see, templates are useful for reusing static content.
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## Templating in Go
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In Go, we have the `template` package to help handle templates. We can use functions like `Parse`, `ParseFile` and `Execute` to load templates from plain text or files, then evaluate the dynamic parts, as shown in figure 7.1.
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In Go, we have the `template` package to help handle templates. We can use functions like `Parse`, `ParseFile` and `Execute` to load templates from plain text or files, then evaluate the dynamic parts, as shown in figure 7.1.
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Example:
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@@ -75,8 +75,8 @@ If you print `{{.}}` in a template, Go outputs a formatted string of this object
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We know how to output a field now. What if the field is an object, and it also has its own fields? How do we print them all in one loop? We can use `{{with …}}…{{end}}` and `{{range …}}{{end}}` for exactly that purpose.
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- `{{range}}` just like range in Go.
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- `{{with}}` lets you write the same object name once and use `.` as shorthand for it ( ***Similar to `with` in VB*** ).
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- {% raw %}`{{range}}`{% endraw %} just like range in Go.
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- {% raw %}`{{with}}`{% endraw %} lets you write the same object name once and use `.` as shorthand for it ( ***Similar to `with` in VB*** ).
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More examples:
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@@ -305,6 +305,7 @@ Here's a complete example, supposing that we have the following three files: `he
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Main template:
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{% raw %}
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//header.tmpl
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{{define "header"}}
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<html>
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@@ -330,10 +331,11 @@ Main template:
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</body>
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</html>
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{{end}}
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//When using subtemplating make sure that you have parsed each sub template file,
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//When using subtemplating make sure that you have parsed each sub template file,
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//otherwise the compiler wouldn't understand what to substitute when it reads the {{template "header"}}
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{% endraw %}
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Code:
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package main
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@@ -344,9 +346,9 @@ Code:
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"io/ioutil"
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"text/template"
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)
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var templates *template.Template
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func main() {
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var allFiles []string
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files, err := ioutil.ReadDir("./templates")
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@@ -359,13 +361,13 @@ Code:
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allFiles = append(allFiles, "./templates/"+filename)
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}
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}
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templates, err = template.ParseFiles(allFiles...) #parses all .tmpl files in the 'templates' folder
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s1, _ := templates.LookUp("header.tmpl")
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s1.ExecuteTemplate(os.Stdout, "header", nil)
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fmt.Println()
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s2, _ := templates.LookUp("content.tmpl")
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s2, _ := templates.LookUp("content.tmpl")
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s2.ExecuteTemplate(os.Stdout, "content", nil)
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fmt.Println()
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s3, _ := templates.LookUp("footer.tmpl")
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@@ -380,19 +382,19 @@ When you don't want to use `{{define}}`, then you can just create a text file wi
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Templates in one set know each other, but you must parse them for every single set.
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Some times you want to contextualize templates, for instance you have a `_head.html`, you might have a header who's value you have to populate based on which data you are loading for instance for a todo list manager you can have three categories `pending`, `completed`, `deleted`. for this suppose you have an if statement like this
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Some times you want to contextualize templates, for instance you have a `_head.html`, you might have a header who's value you have to populate based on which data you are loading for instance for a todo list manager you can have three categories `pending`, `completed`, `deleted`. for this suppose you have an if statement like this
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<title>{{if eq .Navigation "pending"}} Tasks
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<title>{{if eq .Navigation "pending"}} Tasks
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{{ else if eq .Navigation "completed"}}Completed
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{{ else if eq .Navigation "deleted"}}Deleted
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{{ else if eq .Navigation "edit"}} Edit
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{{end}}
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</title>
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Note: Go templates follow the Polish notation while performing the comparison where you give the operator first and the comparison value and the value to be compared with. The else if part is pretty straight forward
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Typically we use a `{{ range }}` operator to loop through the context variable which we pass to the template while execution like this:
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//present in views package
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context := db.GetTasks("pending") //true when you want non deleted notes
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homeTemplate.Execute(w, context)
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@@ -412,31 +414,31 @@ We get the context object from the database as a struct object, the definition i
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Search string
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Message string
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}
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//present in database package
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var task []types.Task
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var context types.Context
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context = types.Context{Tasks: task, Navigation: status}
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//This line is in the database package where the context is returned back to the view.
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We use the task array and the Navigation in our templates, we saw how we use the Navigation in the template,
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We use the task array and the Navigation in our templates, we saw how we use the Navigation in the template,
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we'll see how we'll use the actual task array in our template.
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Here in the `{{ if .Tasks }}` we first check if the Tasks field of our context object which we passed to the template
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while executing is empty or not. If it is not empty then we will range through that array to populate the title and
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content of Task. The below example is very important when it comes to looping through an array in a template, we
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start with the Range operator, then we can give any member of that struct as `{{.Name}}`, my Task structure has a
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Title and a Content, (please note the capital T and C, they are exported names and they need to be capitalised unless you
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want to make them private).
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so {{ range .Tasks }}
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{{ .Title }}
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{{ .Content }}
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{{ end }}
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{{ range .Tasks }}
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{{ .Title }}
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{{ .Content }}
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{{ end }}
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This block of code will print each title and content of the Task array. Below is a full example from github.com/thewhitetulip/Tasks home.html template.
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<div class="timeline">
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{{ if .Tasks}} {{range .Tasks}}
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<div class="note">
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10
en/13.5.md
10
en/13.5.md
@@ -127,11 +127,7 @@ func (this *EditController) Get() {
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id, _ := strconv.Atoi(this.Ctx.Params[":id"])
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this.Data["Post"] = models.GetBlog(id)
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this.Layout = "layout.tpl"
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<<<<<<< HEAD
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this.TplNames = "new.tpl"
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=======
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this.TplNames = "edit.tpl"
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>>>>>>> eead24cf064976b648de5826eab51880c803b0fa
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}
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func (this *EditController) Post() {
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@@ -154,17 +150,11 @@ type DeleteController struct {
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}
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func (this *DeleteController) Get() {
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<<<<<<< HEAD
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id, _ := strconv.Atoi(this.Ctx.Params[":id"])
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this.Data["Post"] = models.DelBlog(id)
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this.Ctx.Redirect(302, "/")
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=======
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id, _ := strconv.Atoi(this.Ctx.Input.Params[":id"])
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blog := models.GetBlog(id)
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this.Data["Post"] = blog
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models.DelBlog(blog)
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this.Ctx.Redirect(302, "/")
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>>>>>>> eead24cf064976b648de5826eab51880c803b0fa
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}
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```
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BIN
.DS_Store → ja/src/.DS_Store
vendored
BIN
.DS_Store → ja/src/.DS_Store
vendored
Binary file not shown.
13
ja/src/1.2/main.go
Normal file
13
ja/src/1.2/main.go
Normal file
@@ -0,0 +1,13 @@
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// 章节 1.2
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// $GOPATH/src/mathapp/main.go
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package main
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import (
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"fmt"
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"mymath"
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)
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func main() {
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fmt.Printf("Hello, world. Sqrt(2) = %v\n", mymath.Sqrt(2))
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}
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11
ja/src/1.2/sqrt.go
Normal file
11
ja/src/1.2/sqrt.go
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@@ -0,0 +1,11 @@
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// 章节 1.2
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// $GOPATH/src/mymath/sqrt.go
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package mymath
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func Sqrt(x float64) float64 {
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z := 0.0
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for i := 0; i < 1000; i++ {
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z -= (z*z - x) / (2 * x)
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}
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return z
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}
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Reference in New Issue
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