html - 从范围中获取索引号

Question

在获取索引号的php中:

foreach much as index => each{
 //get index number from index
}

go中如何获取索引号？

{{ range .post }}
   {{ // how can i get index number? }}
   {{ .Id }}
   {{ .Name}}
{{ end}}

Answer 1

text/template Variables:

If a "range" action initializes a variable, the variable is set to the successive elements of the iteration. Also, a "range" may declare two variables, separated by a comma:

range $index, $element := pipeline

所以在你的例子中:

{{ range $i, $e := .post }}
   Index: {{ $i }}
   {{ .Id }}
   {{ .Name}}
{{ end}}