golang的text/template 包在使用的时候还是有些不便,特别是涉及到逻辑判断的时候。经过测试,发现下面这种写法是正确的。 1.2.1的环境下没有问题!
相关资料:https://gowalker.org/text/template 。
eq是一个函数。
package main import "text/template" import "os" func main() { type Inventory struct { Material string Count int } sweaters := Inventory{"axe", 0} html := ` "test").Parse("{{.Count}} items are made of {{.Material}}" {{$a := .Count}} {{$b := 17}} {{$c := 18}} {{if eq .Count $b}} oo {{else}} xx {{end}} ` tmpl, err := template.New("test").Parse(html) if err != nil { panic(err) } err = tmpl.Execute(os.Stdout, sweaters) if err != nil { panic(err) } }
{{len .Statistics | print}} {{$le:= len .Statistics}} {{if eq $le 0}} is 0 {{else}} not 0 {{end}}
if/else 与or, eq函数的用法
{{else if or (eq $e.Status -2) (eq $e.Status -3)}}
{{with and ($et := .Extension) ($ch := .Changelog) }}
{{range $e := $ch}}
...
{{$et.Name}} {{$e.Version}}
{{end}}
{{end}}
补充:
There is a variable, $, that you can use to solve your problem. From the text/template docs: "When execution begins, $ is set to the data argument passed to Execute, that is, to the starting value of dot." In your case:
{{with ($ch := .Changelog) }}
{{range $e := $ch}}
<!--begin ch-->
<span>
{{$e.CreateTime}} html1
</span>
{{with ($u:= $.User)}}
<a href="/xxx?cid={{$e.Cid}}">html2
</a>
{{end}}
<!--end ch-->
{{end}}
{{end}}
支持的语法虽然少,但是完全够用!
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