1）简单web服务器：

package main    import (          "fmt"          "net/http"  )      func sayHelloName(w http.ResponseWriter, r *http.Request) {            fmt.Fprintf(w, "hello, world")  }    func main() {            http.HandleFunc("/", sayHelloName)          http.ListenAndServe(":9090", nil)    }

  首先go run hello.go之后，打开一个浏览器，输入http://127.0.0.1:9090，你就会在网页上看到web的打印了。

 

2）带有表单处理的web服务器：

package main    import (            "fmt"          "html/template"          "net/http"  )    func sayHelloName(w http.ResponseWriter, r* http.Request) {            fmt.Fprintf(w, "hello, world")  }      func login(w http.ResponseWriter, r* http.Request) {            if r.Method == "GET" {                    t, _ := template.ParseFiles("login.html");                  t.Execute(w, nil)          } else {                    r.ParseForm()                  fmt.Println("username:", r.Form["username"])                  fmt.Println("password", r.Form["password"])            }    }      func main() {            http.HandleFunc("/", sayHelloName)          http.HandleFunc("/login", login)          http.ListenAndServe(":9090", nil)  }

    上面给出的只是代码内容，你还需要一个login.html模板文件，

            
     
                user: 
                pass: 
                
        
     
    

运行go代码之后，试着在浏览器下输入127.0.0.1:9090和127.0.0.1:9090/login