英文:
Go syntax error, unbalanced braces
问题
当我尝试运行我的应用程序时，它显示在第32行有一个意外的}。我已经数了一下{和}，似乎它们是匹配的，但是当我移除f1、f2和p时，它就可以正常工作了。我该如何修复这个问题？
package main
import (
"fmt"
"log"
"net/http"
"html/template"
)
type friend struct{
fname string
}
type person struct{
username string
emails []string
friends []*friend
}
func home(w http.ResponseWriter, r *http.Request){
f1 := friend{fname: "minux.ma"}
f2 := friend{fname: "xushiwei"}
p := Person{
userName: "Astaxie",
emails: []string{"astaxie@beego.me", "astaxie@gmail.com"},
friends: []*Friend{&f1, &f2},
}
t, err := template.ParseFiles("template.gtpl")
if err != nil{
fmt.Println(err)
}
t.Execute(w, nil)
}
func main(){
http.HandleFunc("/", home)
err := http.ListenAndServe(":8000", nil)
if err != nil{
log.Fatal("listen and serve:", err)
}
}
英文:
When I'm trying to run my app it says that there is an unexpected } in line 32, I have counted { and }, seems they are even but when I remove f1, f2 and p it works well. How can I fix this?
package main
import (
"fmt"
"log"
"net/http"
"html/template"
)
type friend struct{
fname string
}
type person struct{
username string
emails []string
friends []*friend
}
func home(w http.ResponseWriter, r *http.Request){
f1 := friend{fname: "minux.ma"}
f2 := friend{fname: "xushiwei"}
p := Person{
userName: "Astaxie",
emails: []string{"astaxie@beego.me", "astaxie@gmail.com"},
friends: []*Friend{&f1, &f2}
}
t, err := template.ParseFiles("template.gtpl")
if err != nil{
fmt.Println(err)
}
t.Execute(w, nil)
}
func main(){
http.HandleFunc("/", home)
err := http.ListenAndServe(":8000", nil)
if err != nil{
log.Fatal("listen and serve:", err)
}
}
答案1
得分: 3
你的代码中有一个意外的}，因为在friends行的末尾缺少了逗号。
friends: []*Friend{&f1, &f2},
始终使用go fmt格式化你的代码（或使用goimports）。它会给出一个带有准确行和列的错误提示：
在复合字面量中换行之前缺少
,。
英文:
There's an unexpected }, because you're missing a comma on the end of the friends line
friends: []*Friend{&f1, &f2},
Always go fmt your code. (or use goimports). It will give you an error with the exact line and column:
> missing ',' before newline in composite literal
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