问题
I have a slice: Keys []* datastore.Key
How could I index one of them in the template file? I guessed {{.Keys[3] }}
, but that doesn't work and I searched a lot but with no clue.
Any suggestions would be welcome, thanks.
回答1:
Use the index command like so:
{{index .Keys 3}}
回答2:
As stated in the html/template package, the majority of examples are actually located in the text/template pkg docs. See http://golang.org/pkg/text/template/
From the docs
index
Returns the result of indexing its first argument by the
following arguments. Thus "index x 1 2 3" is, in Go syntax,
x[1][2][3]. Each indexed item must be a map, slice, or array.
来源:https://stackoverflow.com/questions/12701452/how-to-index-a-slice-element