英文:
unexpected semicolon or newline before {
问题
我正在为你翻译以下内容：
我正在根据这个视频制作服务器，但代码中出现了以下错误：
在 { 之前出现了意外的分号或换行符
（语法错误 [第10行第1列]）
这是 Go 代码：
还有两个 HTML 代码文件，可以在视频中找到，但问题出现在 func main() 中，所以我只发布了 Go 代码。
package main
import (
"fmt"
"log"
"net/http"
)
func main()
{
fileServer := http.FileServer(http.Dir("./static"))
http.Handle("/", fileServer)
http.HandleFunc("/form", formHandler)
http.HandleFunc("/hello", helloHandler)
fmt.Printf("Starting Server at port 8080\n")
if err := http.ListenAndServe(":8080", nil); err != nil {
log.Fatal(err)
}
}
func helloHandler(w http.ResponseWriter, r *http.Request){
if r.URL.Path != "/hello"{
http.Error(w, "404 not found", http.StatusNotFound)
return
}
if r.Method != "GET" {
http.Error(w, "404 not found", http.StatusNotFound)
return
}
fmt.Fprintf(w, "hello!")
}
func formHandler(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
fmt.Fprintf(w, "ParseForm() err: %v", err)
return
}
fmt.Fprintf(w, "POST request successful")
name := r.FormValue("name")
address := r.FormValue("address")
fmt.Fprintf(w, "Name = %s\n", name)
fmt.Fprintf(w, "Address = %s\n", address)
}
我想根据视频制作一个 web 服务器，但是出现了分号语法错误。
英文:
https://youtu.be/ASBUp7stqjo
am making the server from this video and it shows the following error in the code
unexpected semicolon or newline before {
( syntax [Line 10 Col 1] )
here is the golang code
there is also 2 html code files which can be found in the video but the Problem is arising in func main() so i posted only the Go Code
package main
import (
"fmt"
"log"
"net/http"
)
func main()
{
fileServer := http.FileServer(http.Dir("./static"))
http.Handle("/", fileServer)
http.HandleFunc("/form", formHandler)
http.HandleFunc("/hello", helloHandler)
fmt.Printf("Starting Server at port 8080\n")
if err := http.ListenAndServe(8080, nil); err != nil {
log.Fatal(err)
}
}
func helloHandler(w http.ResponseWriter, r *http.Request){
if r.URL.Path != "/hello"{
http.Error(w, "404 not found", http.StatusNotFound)
return
}
if r.Method != "GET" {
http.Error(w, "404 not found", http.StatusNotFound)
return
}
fmt.Fprintf(w, "hello!")
}
func formHandler(w http.ResponseWriter, r *http.Request) {
if err != r.ParseForm(); err != nil {
fmt.Fprintf(w, "ParseForm() err: %v", err)
return
}
fmt.Fprintf(w, "POST request successful")
name := r.FormValue("name")
address := r.FormValue("address")
fmt.Fprintf(w, "Name = %s\n", name)
fmt.Fprintf(w, "Address = %s\n", address)
}
i wanted to make a wbe server from the video and it shows a semicolon syntax error
答案1
得分: 1
使用gofmt命令，你可以轻松地识别出任何语法错误。
另一个解决方案是将你的代码粘贴到https://go.dev/play/，然后点击格式化。任何包含语法错误的代码行都会以红色高亮显示。
现在回到你的代码，我看到了两个问题：
第一个问题
将
func main()
{
改为
func main() {
第二个问题
将
if err := http.ListenAndServe(8080, nil); err != nil {
改为
if err := http.ListenAndServe(":8080", nil); err != nil {
英文:
Use gofmt command, with that you will be able to easily identify any syntax error.
Another solution is just to paste your code to https://go.dev/play/, and click format. Any line of code that contains syntax errors will be highlighted in red.
Now back to your code, there are two problems that I can see:
1st problem
Change
func main()
{
to
func main() {
2nd problem
Change
if err := http.ListenAndServe(8080, nil); err != nil {
to
if err := http.ListenAndServe(":8080", nil); err != nil {
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